View Full Version : heat censor placement.

10-20-2007, 07:01 PM
I'm not sure where to place my heat sensor for readings. If I place it directly under the light at plant lvl it reads higher than if I place it in shade or protect it in a sock or something. The wire is black which may absorb heat. but then again my young plants have exposed soil which may also absorb heat.

So if I read in a book that my garden needs 75 degrees where should I place sensor to come as close to this figure as possible? And should it be covered?


Henry S
10-29-2007, 04:03 PM
to get a reliable reading, place the remote sensor along the stem or under a leaf near the top of the canopy. i wouldnt worry too much about the wire absorbing heat, but if your growing medium is getting warm you will run into problems. if youre using and HID for seedlings and cuttings, it should start out about 3 ft from the tray. if you cant keep your hand under the light where your plant canopy is, move it up about 6".

10-31-2007, 05:50 PM
Thanks For the time. My distance seems ok so I think im safe