I was thinking about getting a thermostat to control the heat on my tanks, I have 3 glass tanks.

Is there a thermostat out there that will control all three tanks? If so can you tell me brand and model...

If I need to get seperate thermostats for each tank what are some very cheap cost thermostats? Are those zoo med rept temp 500r things any good? They dont have a probe to bury and that concearns me...