You might want to contact Cbiblis, he is making some really good electronic thermostats. I see no more than a +/- of 0.2*F with mine, and his feed back about the thermostats on ebay have all been positive. Its also half the price of the GQF. You might want to try getting in touch with him and check his thermostats out for yourself. He also builds a thermostat/egg turner motor controller in a all in one unit. This is the unit I am currently using to hatch my $100 worth of buckeye eggs with. We have already hatched out three seperate hatches with a 90% hatch rate using this controller.
