Quick verdict
A tiny, cheap water leak sensor you can scatter under every water appliance in the house. Detects water and sends an instant Z-Wave alert to Home Assistant. Pair it with the ZAC36 valve actuator and you have automated leak detection and shutoff. The peace of mind is worth more than the sensor costs.
Standout: Tiny water leak sensor that fits anywhere pipes run. Pair with a Z-Wave valve actuator for automated shutoff.
Last checked: 2026-03-22