looking for Thermometer switch
I'm looking for a thermometer switch, something I can use to monitor the temperature of my aquarium, and will interrupt the power supply to my heater when the temperature exceeds a set value.
I'm looking for something basic and solid, that I can use to override my heater if it's internal thermometer breaks and it tries to boil my tank. I just don't trust heaters these days.
I don't really want to spend big bucks on aqua-controller or something, anyone know anything cheap or DIY I could use?
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