How to use an infrared thermometor

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tengu1

Juvie Member
Hi there

So I am thinking to get an infrared Thermometer. But I wanted to ask you all, how do they work?

Do I point it at the rock (basking spot) or will that give a false reading as the rock is hot over time.

Do I point it at the wood or the glass in the cool spot area?

Please advise as i really want to get the temps right when seasons change.

Thank you
 
Taterbug

Taterbug

BD.org Addict
IR thermometers measure the average surface temperature of a certain size area. The area is determined by the resolution of the sensor and is related to how far away you hold it. Cheep thermometers have a low distance:spot ratio (1:1) so at 1" away it measures a 1" spot. Mid-price ones are up to about 12:1 so at 12" away it measures a 1" spot.

You just point it at the surface you want to measure. For the basking spot I take a measurement from farther away for an average then up close I take a bunch to make sure there are no hotspots.

For the cool side air temp is close to surface temp so you an just take a few readings. I also have aite digital thermometer for the cool side.
 
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