I'm new in to all this and looking for a Thermostat. Thanks to all of you i now know not to even think about the BAH-1000SC or the Zoo Med 500R thermostat. I have been looking at the Johnson Controlers and the Ranco. Is one any better than the other and are they the on and off tipe? or how do they keep the desire temp. Ones more thaks for the help.


