Thermostat for heat pad?

I've got a human heat pad that I'm gonna use under my 20 gal tank. What kind of thermostat do you guys use to maintain a certain temp??? Where did you get it and about how much does it cost?? Thanks.

Shawn

most human heating pads have heat control built in.

i dont have a thermostat hooked up to my heat pad...should i and if so where can i buy one ?

You should be able to find a reasonably priced one here
http://lllreptile.com/v2/content/cat...tat-with-probe
or here
http://www.bigappleherp.com/bigapple...roducts/924105