Best Water Leak Detectors (2026): Moen, Phyn, TP-Link

The Shelly Flood Gen 4 supports Matter, Zigbee, Bluetooth, and dual-band Wi-Fi, uses a 6.5-ft detection cable, and now sends alerts through Google Home after an initial issue. The Ikea Klippbok is inexpensive, emits an 80-dB alarm, and requires a Dirigea hub. The Phyn Smart Water Sensor provides reliable alerts, temperature and humidity data, and optional extensions, though its app is cumbersome and lacks in-app alarm silencing.