Quote Originally Posted by kitedemon View Post
I found the manual here,

http://www.hydrofarm.com/downloads/f...TC_instr09.pdf

It looks like a on off style of thermostat basically a 500r with a digital readout. The probe looks to be a large ball it might be hard to tape anywhere. The other point the shutoff at 108 seems fine unless plan on taping the probe on the heat mat directly than depending on the enclosure it may be on the low side. On my Sly enclosure (like a vision) my herpstat is set to 106ºF and the inside sits at 90ºF. The unit in question would manage barely. If it was a different material maybe not. Just my two cents worth the price is very good!
The probe is about 1 inch long and less than 1/4" thick. It is cylindical, not ball shaped. The ball shape you may be referring to is the suction cup that can be used to hold the probe in place. I cut the suction cup off and used metallic tape to secure the probe to my heat tape.

I like mine and for less than $30, how can you go wrong for an on/off thermostat?

Jim Smith