What is an acceptable variation temp. for a thermostat..

[JPerkins]

if a company claims that its thermostats are precisely .1 -+ should they be held to that. The reason I ask is I bought three thermostats from a company as the first one was dead on pretty much. The other two have been 2.2-3 -+ what the other one says and what the temp gun states(together). Should I have them replace them or just get my money back. Their intended use was to regulate 11" flexwatt heat tape for Ball Pythons. Thank you

[The Serpent Merchant]

What thermostats are you using?

I don't know of any thermostat that can keep (or are rated for) +/- 0.1 degrees accuracy. Herpstats have an internal resolution of 0.1125 degrees but are only accurate to 0.9 degree.

[kitedemon]

YES companies should be held to their specs! No doubt!!

The problem is the specs of the T-stat is better than the specs on any and every temp gun. They are not that accurate. There are no T-stats made for use with reptiles that have that much accuracy I never seen any that fine. I would also suggest you are looking at resolution not accuracy. Very few have even 1/2 way accurate thermometers, check your specs on the ones you use and see. Many here the best they can manage is units +/-2ºF and in many cases are using ones that are 2ºC (4ºF or so).