I've got a new rack and need a proper thermostat to maintain temps and keep the animals safe most importantly. Stumbled across this on clist and wanted ya'lls opinions

Here's the ad:

I have a herpstat II that I'm selling due to re-homing my lizards. It still works great on regulating temperatures. It comes with everything originally included, including the box and manual. Make me an offer. For more information on it, go to their website here - http://www.spyderrobotics.com/store/...80f7fa5c28761b

My only worry is that this won't work right for a single rack, or that it's "overkill"....He says it's in killer shape, and obviously I won't buy if it's anything less than he says, but I've been able to wait him out and work him down to $75

It seems like a killer deal, just unsure of whether it is the right product for a single, 3 tub rack....Thanks guys