<div dir="ltr">I would second the waterproofed one-wire sensors, they seem pretty robust. Have been measuring ground temperature for a while now. I've also had reasonable luck with Sistema food storage containers as a cheaper solution compared to true weatherproof enclosures. They do eventually pick up some UV damage but are so cheap it hardly matters. <div><br></div><div>I do have a question of my own. I want to augment my weather station with a UV sensor and an infrared thermometer module to measure sky temperature. But how to weatherproof them? From what I gather some types of acrylic are UV transparent but how does one know which? And for IR - can you even have something between the sensor and the object you are trying to measure? I did wonder if perhaps just a long thin tube to collimate it (since I only want to measure a small section of the "sky" anyway). Then just hope for the best with rain getting in...</div><div><br></div><div><br></div><div>Quentin</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, May 29, 2020 at 2:17 PM Robin Gilks <<a href="mailto:robin@gilks.org">robin@gilks.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
> Hey all list dwellers,<br>
><br>
> I'm looking for advise, suggestions and general pointers to what other<br>
> have done in order to get various types of sensors working out in the real<br>
> world - that is beyond the bench.<br>
><br>
> What sensors perform better / marginal, what methods provide the best<br>
> mechanical / environmental protection.<br>
><br>
> Where should I position say an outdoors temperature sensor?<br>
><br>
> Mostly I'm after less of the theory and more of the I tried this but it<br>
> mutated a spider which ate my cat kind of thing. So don't do that.<br>
><br>
> Thanks for reading, stay safe. Wash your hands.<br>
><br>
> Regards,<br>
> Andrew<br>
<br>
I've been using 1-wire ds18b20 for some 15 years and the ones that are in<br>
a sealed stainless tube seem very reliable outside - I have one on the<br>
roof of the pump shed in full sun to get the sky temperature and one in a<br>
hedge for the shade temperature on my irrigation controller. They is used<br>
for frost detection. Hadley down at Nicegear has them in stock, in fact<br>
the ones I'm using at present I got from him some 5 years ago.<br>
<br>
The BME280 I use in my weather station does temperature, humidity and<br>
pressure and is fine so long as it is kept out of direct influence with a<br>
Stevenson screen (its a bit delicate). I made mine from upturned flowerpot<br>
saucers, threaded studding with spacers between like this:<br>
<a href="http://gilks.ath.cx/gallery3/Building-a-PJ-inverter/IMG_5661" rel="noreferrer" target="_blank">http://gilks.ath.cx/gallery3/Building-a-PJ-inverter/IMG_5661</a><br>
<br>
Other sensors, I would go for automotive types are they are going to be<br>
very robust to start with!<br>
<br>
-- <br>
Robin Gilks zl3rob/g8ecj<br>
Internet: <a href="mailto:g8ecj@gilks.org" target="_blank">g8ecj@gilks.org</a> <a href="http://www.gilks.org" rel="noreferrer" target="_blank">http://www.gilks.org</a><br>
<br>
<br>
<br>
<br>
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