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Quantity
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The Water Leak Sensor 4 is a puck type water leak sensor, similar to our popular Water Leak Sensor 1. The Water Leak Sensor 4 adds an 105dB piezo sounder, and low-temperature sensing (to alert you to conditions that can lead to frozen pipes...
Reviews
4.9
13 ratings
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So easy to set up. Works great with Home Assistant.
Daniel · May 12, 2026
Easy and it works
The sensors were easy to set up, a quick test showed they’ll sense the water quickly, and the freeze notice already helped me avoid a frozen pipe under my sink.
R
Ruth · January 28, 2026
They work
Only negative is that the one at hot water heater (in garage) has been disconnecting at the same time a few times a week. It would always reset it self. Changed position with a new one and so far all good. Worth the money
