BAH-1000DC Reptile Thermostat With DC Chip Technology.
And the top-of-the-line:
Reptile Thermostats - see at spyderrobotics.com
These thermostats and their accessories use solid-state technology so there are no contacts to fail or overheat. I shelled out for two of the Herpstat 1's
about 15 years ago and have been thankful for that decision ever since. They just keep on working.
And there are others you can find with a search.