Water Detectors Sensitive Leak and Drip Alert Water Alarm Sensor with 10A Relay for Automatic Water Shut-Off Valve or Pump (NO Included) (Black)

I used as water detection device for the overflow drain pan on my Air Conditioner. This will detect even a small amount of water and I have it wired to turn the AC off if water is detected. It has a much quicker response than the standard mechanical float system.

We bought this because we have a water cooler that occasionally leaks if the pump gets stuck on. The water cooler sits on a mat in the barn and we have the sensor sitting down on the mat. If the pump stays on and leaks, the sensor reads it and the relay kicks on and turns off the system. I have a 12 volt power supply separate from the cooler to power this up. Pretty slick switch for $20.

The sensor works well, but it drives a "10A" rated relay.The first time I tested it, the relay fused closed after 2 minutes of use at 5A.I had it replaced, but now use it to drive a RIB relay that can actually handle 10A.

I do a lot of remote monitoring of water treatment sites (pump stations, RO facilities)... and leaks are an important thing to monitor. This unit will provide an audible alert when a leak is detected... it also has a relay with NO and NC dry contacts that I can easily connect to my gateways for remote monitoring and alerting. I like that I can adjust sensitivity if I need to. Easy to test it with the type of water that you are working with. 12 VDC power requirement is compatible with my gateway... I like that too. Reasonable cost as well.

Pump house