I designed and built one of these. Everybody needs one of these. I’ve had this one on test for some time now and it’s working well.

If you have a computer or other electrical device running 24/7, out of the way in a corner or back room, what happens when it fails? Could it cause a fire.

This unit plugs in to the mains and provides two power points that are switched by a heavy duty relay. A temperature sensor monitors rate-of-rise and a smoke detector can be connected to monitor for smoke. When triggered, it shuts the power off and can activate an alarm or could even trigger a fire extinguisher. A LED indicator lets you know what’s happening and a push button resets the power.

The original application (laser cutting) called for rate-of-rise only detection because small fires were possible but smoke was also part of the normal operation.