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	<channel>
		<title><![CDATA[Scientific Sales: Latest News]]></title>
		<link>https://scientificsales.co.nz</link>
		<description><![CDATA[The latest news from Scientific Sales.]]></description>
		<pubDate>Fri, 24 Apr 2026 12:00:32 +0000</pubDate>
		<isc:store_title><![CDATA[Scientific Sales]]></isc:store_title>
		<item>
			<title><![CDATA[Davis Weatherlink Console Firmware 1.4]]></title>
			<link>https://scientificsales.co.nz/blog/davis-weatherlink-console-firmware-14/</link>
			<pubDate>Thu, 26 Mar 2026 17:13:38 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/davis-weatherlink-console-firmware-14/</guid>
			<description><![CDATA[<p>If you&rsquo;re setting up a new console or have just performed a factory reset, this guide will help you avoid the most common setup confusion we&rsquo;re seeing with firmware 1.4.</p>
<p>We have had a couple of questions about the <a href="https://scientificsales.co.nz/davis-6313-weatherlink-console/">Weatherlink Console (6313)</a> factory reset process. Firmware 1.4 appears to be a big and significant release, and if you are installing from scratch, or a reset, is can look like it is not working properly.</p>
<p>Once you set your language, you get to the WiFi screen and at this point your should connect to your 2.4GHz network. I<span>t then starts the firmware upgrade process - note that they advise allowing 10-30 minutes. </span><span>If you watch the process or try to interact with it, it looks like it sticks/hangs and it may appear to randomly restart, however if you leave it alone, it just continues happily, if mysteriously, configuring itself.</span></p>
<p><b>Do Not Interrupt the Process</b></p>
<p>Even if the screen appears frozen or the console restarts, do not unplug or reset the device. Interrupting the update can cause setup to fail and require restarting from scratch.</p>
<p><span>It also does a second reset, presumably with the 1.4 upgrade, so you may need to enter your language and WiFi password twice. So don't be surprised if your setup looks like it has strange behaviour, as this appears to be normal at the moment until Davis ship with 1.4.</span></p>
<p><span>Once you get the "Welcome to version 1.4" message, it should be stable from there, and you can safely link to your sensors, an set your rain measurement to metric as normal.</span></p>
<p>If your console has not reached the &ldquo;Welcome to version 1.4&rdquo; screen after 30 minutes, try restarting the setup process or contact us for help support.</p>]]></description>
			<content:encoded><![CDATA[<p>If you&rsquo;re setting up a new console or have just performed a factory reset, this guide will help you avoid the most common setup confusion we&rsquo;re seeing with firmware 1.4.</p>
<p>We have had a couple of questions about the <a href="https://scientificsales.co.nz/davis-6313-weatherlink-console/">Weatherlink Console (6313)</a> factory reset process. Firmware 1.4 appears to be a big and significant release, and if you are installing from scratch, or a reset, is can look like it is not working properly.</p>
<p>Once you set your language, you get to the WiFi screen and at this point your should connect to your 2.4GHz network. I<span>t then starts the firmware upgrade process - note that they advise allowing 10-30 minutes. </span><span>If you watch the process or try to interact with it, it looks like it sticks/hangs and it may appear to randomly restart, however if you leave it alone, it just continues happily, if mysteriously, configuring itself.</span></p>
<p><b>Do Not Interrupt the Process</b></p>
<p>Even if the screen appears frozen or the console restarts, do not unplug or reset the device. Interrupting the update can cause setup to fail and require restarting from scratch.</p>
<p><span>It also does a second reset, presumably with the 1.4 upgrade, so you may need to enter your language and WiFi password twice. So don't be surprised if your setup looks like it has strange behaviour, as this appears to be normal at the moment until Davis ship with 1.4.</span></p>
<p><span>Once you get the "Welcome to version 1.4" message, it should be stable from there, and you can safely link to your sensors, an set your rain measurement to metric as normal.</span></p>
<p>If your console has not reached the &ldquo;Welcome to version 1.4&rdquo; screen after 30 minutes, try restarting the setup process or contact us for help support.</p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Relative versus Absolute Pressure]]></title>
			<link>https://scientificsales.co.nz/blog/relative-versus-absolute-pressure/</link>
			<pubDate>Thu, 20 Mar 2025 15:33:38 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/relative-versus-absolute-pressure/</guid>
			<description><![CDATA[<h3 data-start="76" data-end="147"><strong data-start="80" data-end="147">Absolute Pressure vs. Relative Pressure: What&rsquo;s the Difference?</strong></h3>
<p data-start="149" data-end="451"><strong data-start="149" data-end="170">Absolute pressure</strong> is the <em data-start="178" data-end="183">raw</em>, unadjusted air pressure measured at your location, right where your weather station is sitting. It&rsquo;s the actual pressure exerted by the atmosphere, plus the weight of the air column above it. This reading doesn&rsquo;t care if you&rsquo;re at sea level or halfway up a mountain.</p>
<p data-start="453" data-end="923"><strong data-start="453" data-end="474">Relative pressure</strong>, on the other hand, is what you see on weather reports. It&rsquo;s adjusted to <em data-start="548" data-end="559">sea level</em>, so no matter how high up you live, the reading makes sense when you compare it to other places. Why? Because air pressure decreases as you go higher, and if everyone reported unadjusted readings, it&rsquo;d be chaos! You&rsquo;d never be able to tell if a low-pressure system was coming through or if someone&rsquo;s backyard weather station just happened to be perched on a hill.</p>
<h3 data-start="925" data-end="982"><strong data-start="929" data-end="982">Why Does Relative Pressure Matter in New Zealand?</strong></h3>
<p data-start="984" data-end="1359">New Zealand&rsquo;s landscape is anything but flat. Whether you&rsquo;re by the beach in Auckland or tucked away in the mountains of Queenstown, your absolute pressure will vary just because of elevation. To make your readings line up with official weather reports or forecasts (which use relative pressure at sea level), you&rsquo;ll want to set your station to display <strong data-start="1337" data-end="1358">relative pressure</strong>.</p>
<h3 data-start="1361" data-end="1416"><strong data-start="1365" data-end="1416">How to Set Relative Pressure in NZ (It&rsquo;s Easy!)</strong></h3>
<ol data-start="1418" data-end="2116">
<li data-start="1418" data-end="1653">
<p data-start="1421" data-end="1480"><strong data-start="1421" data-end="1480">Check the current sea-level pressure for your location.</strong></p>
<ul data-start="1484" data-end="1653">
<li data-start="1484" data-end="1649">The easiest way? Head to <a href="https://www.metservice.com/"><strong data-start="1511" data-end="1525">MetService</strong></a> or <a href="https://www.weatherwatch.co.nz/" target="_blank"><strong data-start="1529" data-end="1545">WeatherWatch</strong></a> and find the current pressure for a nearby town or airport. They report <strong data-start="1615" data-end="1648">relative (sea-level) pressure</strong>.</li>
</ul>
</li>
<li data-start="1654" data-end="1985">
<p data-start="1657" data-end="1717"><strong data-start="1657" data-end="1717">Adjust your weather station&rsquo;s pressure reading to match.</strong></p>
<ul data-start="1721" data-end="1985">
<li data-start="1721" data-end="1802">Your station is probably showing <strong data-start="1756" data-end="1777">absolute pressure</strong> straight out of the box.</li>
<li data-start="1806" data-end="1985">Look in your weather station&rsquo;s manual for how to <em data-start="1857" data-end="1868">calibrate</em> or <em data-start="1872" data-end="1877">set</em> relative pressure. Usually, there&rsquo;s a setting where you can dial it in to match what you saw on MetService.</li>
</ul>
</li>
<li data-start="1987" data-end="2116">
<p data-start="1990" data-end="2116"><strong data-start="1990" data-end="1999">Done!</strong> Now your station shows relative pressure, and you&rsquo;re ready to track those classic NZ weather mood swings like a pro.</p>
</li>
</ol><hr data-start="2118" data-end="2121" />
<h3 data-start="2123" data-end="2144"><strong data-start="2127" data-end="2144">Quick Example</strong></h3>
<p data-start="2145" data-end="2387">Let&rsquo;s say your weather station shows <strong data-start="2182" data-end="2193">1015 hPa</strong> absolute pressure. You hop on MetService and see the sea-level pressure nearby is <strong data-start="2276" data-end="2288">1021 hPa</strong>. You&rsquo;d adjust your station&rsquo;s relative pressure setting until it matches that <strong data-start="2366" data-end="2378">1012 hPa</strong> reading, either by directly entering that number, or by setting a offset (of +6 in this example)</p>
<p data-start="2145" data-end="2387">&nbsp;</p>
<p data-start="2145" data-end="2387">&nbsp;</p>
<p data-start="2145" data-end="2387">&nbsp;</p>
<p>Image by <a href="https://pixabay.com/users/analogicus-8164369/?utm_source=link-attribution&amp;utm_medium=referral&amp;utm_campaign=image&amp;utm_content=7471265">Tom</a> from <a href="https://pixabay.com//?utm_source=link-attribution&amp;utm_medium=referral&amp;utm_campaign=image&amp;utm_content=7471265">Pixabay</a></p>]]></description>
			<content:encoded><![CDATA[<h3 data-start="76" data-end="147"><strong data-start="80" data-end="147">Absolute Pressure vs. Relative Pressure: What&rsquo;s the Difference?</strong></h3>
<p data-start="149" data-end="451"><strong data-start="149" data-end="170">Absolute pressure</strong> is the <em data-start="178" data-end="183">raw</em>, unadjusted air pressure measured at your location, right where your weather station is sitting. It&rsquo;s the actual pressure exerted by the atmosphere, plus the weight of the air column above it. This reading doesn&rsquo;t care if you&rsquo;re at sea level or halfway up a mountain.</p>
<p data-start="453" data-end="923"><strong data-start="453" data-end="474">Relative pressure</strong>, on the other hand, is what you see on weather reports. It&rsquo;s adjusted to <em data-start="548" data-end="559">sea level</em>, so no matter how high up you live, the reading makes sense when you compare it to other places. Why? Because air pressure decreases as you go higher, and if everyone reported unadjusted readings, it&rsquo;d be chaos! You&rsquo;d never be able to tell if a low-pressure system was coming through or if someone&rsquo;s backyard weather station just happened to be perched on a hill.</p>
<h3 data-start="925" data-end="982"><strong data-start="929" data-end="982">Why Does Relative Pressure Matter in New Zealand?</strong></h3>
<p data-start="984" data-end="1359">New Zealand&rsquo;s landscape is anything but flat. Whether you&rsquo;re by the beach in Auckland or tucked away in the mountains of Queenstown, your absolute pressure will vary just because of elevation. To make your readings line up with official weather reports or forecasts (which use relative pressure at sea level), you&rsquo;ll want to set your station to display <strong data-start="1337" data-end="1358">relative pressure</strong>.</p>
<h3 data-start="1361" data-end="1416"><strong data-start="1365" data-end="1416">How to Set Relative Pressure in NZ (It&rsquo;s Easy!)</strong></h3>
<ol data-start="1418" data-end="2116">
<li data-start="1418" data-end="1653">
<p data-start="1421" data-end="1480"><strong data-start="1421" data-end="1480">Check the current sea-level pressure for your location.</strong></p>
<ul data-start="1484" data-end="1653">
<li data-start="1484" data-end="1649">The easiest way? Head to <a href="https://www.metservice.com/"><strong data-start="1511" data-end="1525">MetService</strong></a> or <a href="https://www.weatherwatch.co.nz/" target="_blank"><strong data-start="1529" data-end="1545">WeatherWatch</strong></a> and find the current pressure for a nearby town or airport. They report <strong data-start="1615" data-end="1648">relative (sea-level) pressure</strong>.</li>
</ul>
</li>
<li data-start="1654" data-end="1985">
<p data-start="1657" data-end="1717"><strong data-start="1657" data-end="1717">Adjust your weather station&rsquo;s pressure reading to match.</strong></p>
<ul data-start="1721" data-end="1985">
<li data-start="1721" data-end="1802">Your station is probably showing <strong data-start="1756" data-end="1777">absolute pressure</strong> straight out of the box.</li>
<li data-start="1806" data-end="1985">Look in your weather station&rsquo;s manual for how to <em data-start="1857" data-end="1868">calibrate</em> or <em data-start="1872" data-end="1877">set</em> relative pressure. Usually, there&rsquo;s a setting where you can dial it in to match what you saw on MetService.</li>
</ul>
</li>
<li data-start="1987" data-end="2116">
<p data-start="1990" data-end="2116"><strong data-start="1990" data-end="1999">Done!</strong> Now your station shows relative pressure, and you&rsquo;re ready to track those classic NZ weather mood swings like a pro.</p>
</li>
</ol><hr data-start="2118" data-end="2121" />
<h3 data-start="2123" data-end="2144"><strong data-start="2127" data-end="2144">Quick Example</strong></h3>
<p data-start="2145" data-end="2387">Let&rsquo;s say your weather station shows <strong data-start="2182" data-end="2193">1015 hPa</strong> absolute pressure. You hop on MetService and see the sea-level pressure nearby is <strong data-start="2276" data-end="2288">1021 hPa</strong>. You&rsquo;d adjust your station&rsquo;s relative pressure setting until it matches that <strong data-start="2366" data-end="2378">1012 hPa</strong> reading, either by directly entering that number, or by setting a offset (of +6 in this example)</p>
<p data-start="2145" data-end="2387">&nbsp;</p>
<p data-start="2145" data-end="2387">&nbsp;</p>
<p data-start="2145" data-end="2387">&nbsp;</p>
<p>Image by <a href="https://pixabay.com/users/analogicus-8164369/?utm_source=link-attribution&amp;utm_medium=referral&amp;utm_campaign=image&amp;utm_content=7471265">Tom</a> from <a href="https://pixabay.com//?utm_source=link-attribution&amp;utm_medium=referral&amp;utm_campaign=image&amp;utm_content=7471265">Pixabay</a></p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Pacakging Re-use]]></title>
			<link>https://scientificsales.co.nz/blog/pacakging-reuse/</link>
			<pubDate>Mon, 25 Mar 2024 14:10:23 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/pacakging-reuse/</guid>
			<description><![CDATA[<p>
	Our business is all about measuring our environment. It is safe to say that were are experiencing extreme weather events more frequently and out climate is changing. We cannot pretend that an online business shipping products made of metal and plastic, via commercial couriers does not impact our environment - we could not serve the whole of New Zealand otherwise.</p><p>
	We can and do make some decisions that in their little way can help - we recycle inbound packaging, wherever we can we use sea freight and we also try to do our best with the packaging we use. Our padded envelopes are 30% recycled, our new boxes are 70% recycled and when we can we reuse old packaging we have both for the outer box and for packing inside. Reusing is usually less environmentally impactful than recycling.</p><p>
	So if you have ever wondered why your new weather station did not come in a sleek, branded box, this is why. The tatty cardboard box, with someone else's brand on it, is just one little thing we can do help our planet.</p>]]></description>
			<content:encoded><![CDATA[<p>
	Our business is all about measuring our environment. It is safe to say that were are experiencing extreme weather events more frequently and out climate is changing. We cannot pretend that an online business shipping products made of metal and plastic, via commercial couriers does not impact our environment - we could not serve the whole of New Zealand otherwise.</p><p>
	We can and do make some decisions that in their little way can help - we recycle inbound packaging, wherever we can we use sea freight and we also try to do our best with the packaging we use. Our padded envelopes are 30% recycled, our new boxes are 70% recycled and when we can we reuse old packaging we have both for the outer box and for packing inside. Reusing is usually less environmentally impactful than recycling.</p><p>
	So if you have ever wondered why your new weather station did not come in a sleek, branded box, this is why. The tatty cardboard box, with someone else's brand on it, is just one little thing we can do help our planet.</p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[A ChatGPT Sonnet About Weather Stations]]></title>
			<link>https://scientificsales.co.nz/blog/a-chatgpt-sonnet-about-weather-stations/</link>
			<pubDate>Sun, 05 Mar 2023 19:47:11 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/a-chatgpt-sonnet-about-weather-stations/</guid>
			<description><![CDATA[<p>
	We asked ChatGPT to write a sonnet about weather stations - it is a masterpiece:</p><p>
	<em>Amidst the fields and meadows green and vast,</em><br>
	<em>A sentinel stands tall, its purpose clear:</em><br>
	<em>To measure, record, and report at last,</em><br>
	<em>The changing moods of sky and atmosphere.</em></p><p>
	<em>A weather station, steadfast and secure,</em><br>
	<em>Its sensors keenly tuned to every gust,</em><br>
	<em>To every shift in temperature and moisture,</em><br>
	<em>To every drop of rain or flake of dust.</em></p><p>
	<em>With diligence it keeps its watchful eye,</em><br>
	<em>Its data points revealing to the world,</em><br>
	<em>The patterns of the earth and sea and sky,</em><br>
	<em>The ebb and flow of weather, swiftly whirled.</em></p><p>
	<em>Oh, weather station, faithful and true,</em><br>
	<em>We owe our thanks and admiration to you.</em></p>]]></description>
			<content:encoded><![CDATA[<p>
	We asked ChatGPT to write a sonnet about weather stations - it is a masterpiece:</p><p>
	<em>Amidst the fields and meadows green and vast,</em><br>
	<em>A sentinel stands tall, its purpose clear:</em><br>
	<em>To measure, record, and report at last,</em><br>
	<em>The changing moods of sky and atmosphere.</em></p><p>
	<em>A weather station, steadfast and secure,</em><br>
	<em>Its sensors keenly tuned to every gust,</em><br>
	<em>To every shift in temperature and moisture,</em><br>
	<em>To every drop of rain or flake of dust.</em></p><p>
	<em>With diligence it keeps its watchful eye,</em><br>
	<em>Its data points revealing to the world,</em><br>
	<em>The patterns of the earth and sea and sky,</em><br>
	<em>The ebb and flow of weather, swiftly whirled.</em></p><p>
	<em>Oh, weather station, faithful and true,</em><br>
	<em>We owe our thanks and admiration to you.</em></p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[True North or Magnetic North?]]></title>
			<link>https://scientificsales.co.nz/blog/true-north-or-magnetic-north/</link>
			<pubDate>Tue, 13 Sep 2022 15:20:00 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/true-north-or-magnetic-north/</guid>
			<description><![CDATA[<p>
	So, you have a brand new weather station and you are setting it up; do you choose true North - the direction marked as North on our maps, or magnetic north - the direction to the Earth's pole. Depending on where you live ranging from a magnetic declination of +18°&nbsp;in Kaitaia to +26°&nbsp;in Invercargill. Take a look at&nbsp;
	<a href="https://www.magnetic-declination.com/">https://www.magnetic-declination.com/</a> for the value in your city.</p><p>
	Wind direction is most commonly quoted in True North terms, so we recommend using this direction. If you are using a magnetic compass, simply adjust your station orientation, or calibration by the offset at your location. If you are using the iPhone compass, you can configure it to read either magnetic or true North</p><p>This map is also quite useful:  
	<a href="https://teara.govt.nz/en/map/9217/magnetic-declination-in-new-zealand">https://teara.govt.nz/en/map/9217/magnetic-declination-in-new-zealand</a></p>]]></description>
			<content:encoded><![CDATA[<p>
	So, you have a brand new weather station and you are setting it up; do you choose true North - the direction marked as North on our maps, or magnetic north - the direction to the Earth's pole. Depending on where you live ranging from a magnetic declination of +18°&nbsp;in Kaitaia to +26°&nbsp;in Invercargill. Take a look at&nbsp;
	<a href="https://www.magnetic-declination.com/">https://www.magnetic-declination.com/</a> for the value in your city.</p><p>
	Wind direction is most commonly quoted in True North terms, so we recommend using this direction. If you are using a magnetic compass, simply adjust your station orientation, or calibration by the offset at your location. If you are using the iPhone compass, you can configure it to read either magnetic or true North</p><p>This map is also quite useful:  
	<a href="https://teara.govt.nz/en/map/9217/magnetic-declination-in-new-zealand">https://teara.govt.nz/en/map/9217/magnetic-declination-in-new-zealand</a></p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Hailstone sizes]]></title>
			<link>https://scientificsales.co.nz/blog/hailstone-sizes/</link>
			<pubDate>Thu, 02 Jun 2022 17:53:29 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/hailstone-sizes/</guid>
			<description><![CDATA[<p>
	Hail stones are raindrops that have been pushed up into the colder atmosphere by an updraft and frozen. These tiny hailstones can collide with supercooled water, growing in size. Once they are too heavy, they will fall as hail.</p><p>
	Most often, they are small, but once in a while, they can become scarily large. This is when they can damage your car, crops or weather station. Or you if your are caught out in it.</p><p>
	Believe it or not, there is an official size chart for classifying your hail:</p>
<table border="1">
<tbody>
<tr>
	<td style="padding: 10px">
		<strong>Description</strong>
	</td>
	<td style="padding: 10px">
		<strong>Size in cm</strong>
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Pea
	</td>
	<td style="padding: 10px">
		0.5-0.9
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Mothball
	</td>
	<td style="padding: 10px">
		1.0-1.5
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Marble, grape
	</td>
	<td style="padding: 10px">
		1.6-2.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Walnut
	</td>
	<td style="padding: 10px">
		2.1-3.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Pigeon egg to golf ball
	</td>
	<td style="padding: 10px">
		3.1-4.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Pullet egg
	</td>
	<td style="padding: 10px">
		4.1-5.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Hen egg
	</td>
	<td style="padding: 10px">
		5.1-6.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Tennis ball to cricket ball
	</td>
	<td style="padding: 10px">
		6.1-7.5
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Large orange to softball
	</td>
	<td style="padding: 10px">
		7.6-9.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Grapefruit
	</td>
	<td style="padding: 10px">
		9.1-10.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Melon
	</td>
	<td style="padding: 10px">
		&gt;10.0
	</td>
</tr>
</tbody>
</table><p style="padding-top: 15px">
	Sadly, your weather station cannot measure these.</p>]]></description>
			<content:encoded><![CDATA[<p>
	Hail stones are raindrops that have been pushed up into the colder atmosphere by an updraft and frozen. These tiny hailstones can collide with supercooled water, growing in size. Once they are too heavy, they will fall as hail.</p><p>
	Most often, they are small, but once in a while, they can become scarily large. This is when they can damage your car, crops or weather station. Or you if your are caught out in it.</p><p>
	Believe it or not, there is an official size chart for classifying your hail:</p>
<table border="1">
<tbody>
<tr>
	<td style="padding: 10px">
		<strong>Description</strong>
	</td>
	<td style="padding: 10px">
		<strong>Size in cm</strong>
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Pea
	</td>
	<td style="padding: 10px">
		0.5-0.9
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Mothball
	</td>
	<td style="padding: 10px">
		1.0-1.5
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Marble, grape
	</td>
	<td style="padding: 10px">
		1.6-2.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Walnut
	</td>
	<td style="padding: 10px">
		2.1-3.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Pigeon egg to golf ball
	</td>
	<td style="padding: 10px">
		3.1-4.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Pullet egg
	</td>
	<td style="padding: 10px">
		4.1-5.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Hen egg
	</td>
	<td style="padding: 10px">
		5.1-6.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Tennis ball to cricket ball
	</td>
	<td style="padding: 10px">
		6.1-7.5
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Large orange to softball
	</td>
	<td style="padding: 10px">
		7.6-9.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Grapefruit
	</td>
	<td style="padding: 10px">
		9.1-10.0
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Melon
	</td>
	<td style="padding: 10px">
		&gt;10.0
	</td>
</tr>
</tbody>
</table><p style="padding-top: 15px">
	Sadly, your weather station cannot measure these.</p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Downloading your WeatherMaster Data]]></title>
			<link>https://scientificsales.co.nz/blog/downloading-your-weathermaster-data/</link>
			<pubDate>Tue, 24 May 2022 18:57:18 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/downloading-your-weathermaster-data/</guid>
			<description><![CDATA[<p>
	Downloading data from your WeatherMaster is straightforward. There are two easy ways.</p><p>
	1) If you are uploading your data to Ecowitt, there is an Export button on the screen below the dials and above the graphs or data tables. This will export the data in the current view - so if you are viewing daily data, you will get a set of readings every five minutes, whereas if you are viewing annual data, you will get a single average set of reading per day.</p><p>
	<img src="/product_images/uploaded_images/ecowitt-export.png"></p><p>
	2) If you would like all the data, you will need to use the backup to Micro-SD card feature;</p><ul>
	<li>Insert a formatted SDHC card (not&nbsp; SDHX) into the card slot above the power socket</li>	<li>
	Press the console button beneath the cog four times</li>	<li>
	Use the arrows to select the Backup option.</li>	<li>
	Press the button below +</li>	<li>
	Use the arrows to select OK and hit + again</li></ul><p>
	The data will download to your SD card in CSV format. See also 4.12.7 in the manual.</p>]]></description>
			<content:encoded><![CDATA[<p>
	Downloading data from your WeatherMaster is straightforward. There are two easy ways.</p><p>
	1) If you are uploading your data to Ecowitt, there is an Export button on the screen below the dials and above the graphs or data tables. This will export the data in the current view - so if you are viewing daily data, you will get a set of readings every five minutes, whereas if you are viewing annual data, you will get a single average set of reading per day.</p><p>
	<img src="/product_images/uploaded_images/ecowitt-export.png"></p><p>
	2) If you would like all the data, you will need to use the backup to Micro-SD card feature;</p><ul>
	<li>Insert a formatted SDHC card (not&nbsp; SDHX) into the card slot above the power socket</li>	<li>
	Press the console button beneath the cog four times</li>	<li>
	Use the arrows to select the Backup option.</li>	<li>
	Press the button below +</li>	<li>
	Use the arrows to select OK and hit + again</li></ul><p>
	The data will download to your SD card in CSV format. See also 4.12.7 in the manual.</p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Aligning your WeatherMaster Wind Direction]]></title>
			<link>https://scientificsales.co.nz/blog/aligning-your-weathermaster-wind-direction/</link>
			<pubDate>Fri, 18 Mar 2022 18:51:10 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/aligning-your-weathermaster-wind-direction/</guid>
			<description><![CDATA[<p>
	There is a misprint in the Aercus Instruments WeatherMaster manual - you are incorrectly advised to calibrate your wind direction in the Southern Hemisphere - this is not necessary unless you wish to orientate your sensors array other than with the embossed arrow pointing north</p><p>
	There are two approaches you can take with this:</p><p>
	1) Since the solar panel is flat to the top of the device, it doesn't really matter what the orientation of the body of the outdoor sensors is at our latitude. If you rotate body of the sensor so that the arrow marked North points North, this is the quick and easy way of getting wind direction right.</p><p>
	2) Alternatively, you can point the wind sensor to North and tape it in place. The you can apply a calibration in degrees to reflect your choice of orientation on the calibration screen described in 4.11 of the manual. Remove the tape, and you are done.</p><p>
	The Current version of the manual can be downloaded from&nbsp;<a href="https://aercusinstruments.com/content/manuals/Instruction-Manual-for-WeatherMaster-Aercus-Instruments-E-V1.2.pdf">https://aercusinstruments.com/content/manuals/Instruction-Manual-for-WeatherMaster-Aercus-Instruments-E-V1.2.pdf</a></p>]]></description>
			<content:encoded><![CDATA[<p>
	There is a misprint in the Aercus Instruments WeatherMaster manual - you are incorrectly advised to calibrate your wind direction in the Southern Hemisphere - this is not necessary unless you wish to orientate your sensors array other than with the embossed arrow pointing north</p><p>
	There are two approaches you can take with this:</p><p>
	1) Since the solar panel is flat to the top of the device, it doesn't really matter what the orientation of the body of the outdoor sensors is at our latitude. If you rotate body of the sensor so that the arrow marked North points North, this is the quick and easy way of getting wind direction right.</p><p>
	2) Alternatively, you can point the wind sensor to North and tape it in place. The you can apply a calibration in degrees to reflect your choice of orientation on the calibration screen described in 4.11 of the manual. Remove the tape, and you are done.</p><p>
	The Current version of the manual can be downloaded from&nbsp;<a href="https://aercusinstruments.com/content/manuals/Instruction-Manual-for-WeatherMaster-Aercus-Instruments-E-V1.2.pdf">https://aercusinstruments.com/content/manuals/Instruction-Manual-for-WeatherMaster-Aercus-Instruments-E-V1.2.pdf</a></p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Sensor Range and Signal Loss]]></title>
			<link>https://scientificsales.co.nz/blog/sensor-range-and-signal-loss/</link>
			<pubDate>Wed, 16 Mar 2022 18:51:41 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/sensor-range-and-signal-loss/</guid>
			<description><![CDATA[<p>
	Most weather stations quote a maximum range of around 100 meters (line of sight) between a sensor a console/base station -&nbsp;
	<a href="https://scientificsales.co.nz/weather-stations/davis-stations/" target="_blank">Davis Instruments</a> devices are stronger and send up to 300m. In real life conditions, we have walls, trees, rooves and other obstructions and this can reduce the range a signal can be reliably received. We usually suggest a real world range of about a third of maximum range.</p><p>
	The following is a table of reception loss vs. the transmission medium. Each “wall” or obstruction&nbsp;decreases the transmission range by the factor shown below.</p>
<table border="1">
<tbody>
<tr>
	<td style="padding: 10px">
		<strong>Medium</strong>
	</td>
	<td style="padding: 10px">
		<strong>RF Signal Strength Reduction</strong>
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Glass (untreated)
	</td>
	<td style="padding: 10px">
		5-15%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Plastics
	</td>
	<td style="padding: 10px">
		10-15%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Wood
	</td>
	<td style="padding: 10px">
		10-40%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Brick
	</td>
	<td style="padding: 10px">
		10-40%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Concrete
	</td>
	<td style="padding: 10px">
		40-80%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Metal
	</td>
	<td style="padding: 10px">
		90-100%
	</td>
</tr>
</tbody>
</table><p style="padding-top: 15px">
	Normally, you can adjust positions of sensors an receivers to optimise sour signal strength - something a simple as moving a console near to a window or nearer to line of sight.</p>]]></description>
			<content:encoded><![CDATA[<p>
	Most weather stations quote a maximum range of around 100 meters (line of sight) between a sensor a console/base station -&nbsp;
	<a href="https://scientificsales.co.nz/weather-stations/davis-stations/" target="_blank">Davis Instruments</a> devices are stronger and send up to 300m. In real life conditions, we have walls, trees, rooves and other obstructions and this can reduce the range a signal can be reliably received. We usually suggest a real world range of about a third of maximum range.</p><p>
	The following is a table of reception loss vs. the transmission medium. Each “wall” or obstruction&nbsp;decreases the transmission range by the factor shown below.</p>
<table border="1">
<tbody>
<tr>
	<td style="padding: 10px">
		<strong>Medium</strong>
	</td>
	<td style="padding: 10px">
		<strong>RF Signal Strength Reduction</strong>
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Glass (untreated)
	</td>
	<td style="padding: 10px">
		5-15%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Plastics
	</td>
	<td style="padding: 10px">
		10-15%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Wood
	</td>
	<td style="padding: 10px">
		10-40%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Brick
	</td>
	<td style="padding: 10px">
		10-40%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Concrete
	</td>
	<td style="padding: 10px">
		40-80%
	</td>
</tr>
<tr>
	<td style="padding: 10px">
		Metal
	</td>
	<td style="padding: 10px">
		90-100%
	</td>
</tr>
</tbody>
</table><p style="padding-top: 15px">
	Normally, you can adjust positions of sensors an receivers to optimise sour signal strength - something a simple as moving a console near to a window or nearer to line of sight.</p>]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[UV Index]]></title>
			<link>https://scientificsales.co.nz/blog/uv-index/</link>
			<pubDate>Thu, 05 Aug 2021 18:51:53 +0000</pubDate>
			<guid isPermaLink="false">https://scientificsales.co.nz/blog/uv-index/</guid>
			<description><![CDATA[<p>
	A complete weather station may well measure UV Index. Whilst related to solar radiation measurement (irradiance), it is not the same as shorter wavelengths of radiation cause more damage. UV Index therefore weights dose by wavelengths and divides the result by 25mW/m	
	<sup>2</sup> to give you an index from 0-11+</p>
<table border="1">
<tbody>
<tr>
	<td style="padding: 10px; text-align: center;">
		<strong>UV Index</strong>
	</td>
	<td style="padding: 10px; text-align: center;">
		<strong>Colour</strong>
	</td>
	<td style="padding: 10px; text-align: center;">
		<strong>Risk</strong>
	</td>
	<td style="padding: 10px;">
		<strong>Recommendation</strong>
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		0-2
	</td>
	<td style="padding: 10px; text-align: center; background-color: green; color: white;">
		Green
	</td>
	<td style="padding: 10px; text-align: center;">
		Low
	</td>
	<td style="padding: 10px;">
			Wear sunglasses on bright days. If you burn easily, cover up and use broad spectrum 
		<a href="https://en.wikipedia.org/wiki/Sun_protection_factor">SPF</a> 15+ sunscreen.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		3-5
	</td>
	<td style="padding: 10px; text-align: center; background-color: yellow;">
		Yellow
	</td>
	<td style="padding: 10px; text-align: center;">
		Moderate
	</td>
	<td style="padding: 10px;">
		Stay in shade near midday when the Sun is strongest. If outdoors, wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		6-7
	</td>
	<td style="padding: 10px; text-align: center;background-color: orange;">
			Orange
	</td>
	<td style="padding: 10px; text-align: center;">
		High
	</td>
	<td style="padding: 10px;">
			Reduce time in the sun between 10 a.m. and 4 p.m. If outdoors, seek shade and wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		8-10
	</td>
	<td style="padding: 10px; text-align: center; background-color: red; color: white;">
		Red
	</td>
	<td style="padding: 10px; text-align: center;">
		Very High
	</td>
	<td style="padding: 10px;">
		Minimize sun exposure between 10 a.m. and 4 p.m. If outdoors, seek shade and wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		11+
	</td>
	<td style="padding: 10px; text-align: center; background-color: violet; color: white;">
		Purple
	</td>
	<td style="padding: 10px; text-align: center;">
		Extreme
	</td>
	<td style="padding: 10px;">
		Try to avoid sun exposure between 10 a.m. and 4 p.m. If outdoors, seek shade and wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
</tbody>
</table>]]></description>
			<content:encoded><![CDATA[<p>
	A complete weather station may well measure UV Index. Whilst related to solar radiation measurement (irradiance), it is not the same as shorter wavelengths of radiation cause more damage. UV Index therefore weights dose by wavelengths and divides the result by 25mW/m	
	<sup>2</sup> to give you an index from 0-11+</p>
<table border="1">
<tbody>
<tr>
	<td style="padding: 10px; text-align: center;">
		<strong>UV Index</strong>
	</td>
	<td style="padding: 10px; text-align: center;">
		<strong>Colour</strong>
	</td>
	<td style="padding: 10px; text-align: center;">
		<strong>Risk</strong>
	</td>
	<td style="padding: 10px;">
		<strong>Recommendation</strong>
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		0-2
	</td>
	<td style="padding: 10px; text-align: center; background-color: green; color: white;">
		Green
	</td>
	<td style="padding: 10px; text-align: center;">
		Low
	</td>
	<td style="padding: 10px;">
			Wear sunglasses on bright days. If you burn easily, cover up and use broad spectrum 
		<a href="https://en.wikipedia.org/wiki/Sun_protection_factor">SPF</a> 15+ sunscreen.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		3-5
	</td>
	<td style="padding: 10px; text-align: center; background-color: yellow;">
		Yellow
	</td>
	<td style="padding: 10px; text-align: center;">
		Moderate
	</td>
	<td style="padding: 10px;">
		Stay in shade near midday when the Sun is strongest. If outdoors, wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		6-7
	</td>
	<td style="padding: 10px; text-align: center;background-color: orange;">
			Orange
	</td>
	<td style="padding: 10px; text-align: center;">
		High
	</td>
	<td style="padding: 10px;">
			Reduce time in the sun between 10 a.m. and 4 p.m. If outdoors, seek shade and wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		8-10
	</td>
	<td style="padding: 10px; text-align: center; background-color: red; color: white;">
		Red
	</td>
	<td style="padding: 10px; text-align: center;">
		Very High
	</td>
	<td style="padding: 10px;">
		Minimize sun exposure between 10 a.m. and 4 p.m. If outdoors, seek shade and wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
<tr>
	<td style="padding: 10px; text-align: center;">
		11+
	</td>
	<td style="padding: 10px; text-align: center; background-color: violet; color: white;">
		Purple
	</td>
	<td style="padding: 10px; text-align: center;">
		Extreme
	</td>
	<td style="padding: 10px;">
		Try to avoid sun exposure between 10 a.m. and 4 p.m. If outdoors, seek shade and wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days.
	</td>
</tr>
</tbody>
</table>]]></content:encoded>
		</item>
	</channel>
</rss>
