If you're looking for a cheap but reliable tstat, look up "ZooMed Repti temp 500r." Much better for a small price of $30 or so at most websites.
Or...if you're looking for a higher price range, check out the Ranco or Johnson tstats here.
Or better yet are the Herpstat and Helix.
But I use a 500r and recommend it. Just make sure it has a backup, like a $10 Lutron 300W lamp dimmer in case it fails (true of any tstat regardless of price).
I am actually gonna buy a ZooMed Repti temp 500r online right now. Haha.
1.1 Normal BP
0.1 Broad-Headed Skink
0.0.1 Bearded Dragon