I saw this somewhere on the net (can't remember where and when), and decide to do it and take pictures at the same time.

Problem I had, is that high humidity on the electronic card and lcd of the unit make it stop working. So by placing the unit outside the incubator tub, and the probe inside, I can get an accurate value.

Can also be used for a cage too. I only did the humidity, but it's easy to do it for temperature. (Like using a in/out thermometer for the cool and hot spot).

Got this unit at Home Depot for less than 10$ I think. (but they are all basically made the same, at least the cheap ones).
http://img.photobucket.com/albums/v230/Watever44/Ball%20Collection/Hygrometer%20Mod/IMG_0001.jpg


Tools needed :
1 thermometer / hygrometer
1 soldering iron
Soldering wire
Electric wire (small one will be better, mine was too big, harder to sold and move, that's why I only did hygrometer).
1 screwdriver
http://img.photobucket.com/albums/v230/Watever44/Ball%20Collection/Hygrometer%20Mod/IMG_0002.jpg

Open the unit.
Find the inside probes.
Unsolder them. (I only did humidity, but on the picture you can see the temp probe too incase you want to go that way).
http://img.photobucket.com/albums/v230/Watever44/Ball%20Collection/Hygrometer%20Mod/IMG_0007.jpg

Solder the probe to the wire and wire to the unit. (Don't burn the electronic card :) )
http://img.photobucket.com/albums/v230/Watever44/Ball%20Collection/Hygrometer%20Mod/IMG_0014.jpg

http://img.photobucket.com/albums/v230/Watever44/Ball%20Collection/Hygrometer%20Mod/IMG_0017.jpg

http://img.photobucket.com/albums/v230/Watever44/Ball%20Collection/Hygrometer%20Mod/IMG_0020.jpg

You are mostly done. You only need to cut a hole in the thermometer to pass the wire.

Then you get this !
http://img.photobucket.com/albums/v230/Watever44/Ball%20Collection/Hygrometer%20Mod/IMG_0024.jpg


Beware : Some higher quality thermometer use thermocouple instead of those resistance to calculate the value. Adding a wire in between can give you wrong numbers.


Hope it was useful for anyone.

Great post..i'll have to try this lol.

Thats a Nice Do It Yourself. Thanks for sharing that.

That seems like it would work, normally I get mine with the probes already included but that would be a way to bypass it once I break a probe wire like I have plenty of times in the past...:cheers:

That seems like it would work, normally I get mine with the probes already included but that would be a way to bypass it once I break a probe wire like I have plenty of times in the past...:cheers:

Well if you can find them, it's alright.
Just that I wasn't able to find some, or at a reasonable price.