This external temperature sensor is the perfect addition to your Autoterm diesel heater. It can work alongside the Mini Controller or Push Controller  to maintain the temperature in your van according to the feedback from the controller, constantly adjusting the heaters output.
 
If the van gets too hot the heater will shut down, restarting when the temperature has dropped down past the desired point. This is our favourite Autoterm controller combination as it combines the simplicity of the rotary controller with true thermostatic control.
 
Sensor wire length: 5m