Eufy Water and Freeze Sensor vs Kidde WiFi Water Leak & Freeze Detector

The Kidde WiFi Water Leak & Freeze Detector wins overall on price, integrations, alerts, and an on-device siren. The Eufy Water and Freeze Sensor is the better-reviewed choice only inside an existing Eufy HomeBase setup.

Whether you already own the hub. The Kidde WiFi Water Leak & Freeze Detector is hub-free 2.4 GHz Wi-Fi with Alexa, Google Home, Home Assistant, and a siren on the puck. The Eufy Water and Freeze Sensor requires a Eufy HomeBase, has no Alexa, Google Home, HomeKit or SmartThings, and has no on-device sound or light.

Yes. Both the Eufy Water and Freeze Sensor and the Kidde WiFi Water Leak & Freeze Detector combine water-leak detection with freeze-temperature alerts. Kidde also lists general temperature alerts; Eufy does not, even though it has a temperature sensor.

No. It is an add-on for Eufy Security HomeBase 2, 3, S380 or S280. The Kidde WiFi Water Leak & Freeze Detector works on its own once it joins Wi-Fi.

Households already running a compatible Eufy HomeBase that want leak and freeze alerts inside the Eufy app, and who do not need a siren on the sensor itself.

Buyers who want the cheaper hub-free Wi-Fi puck with a local siren, freeze alerts, and Alexa or Google Home, without buying into Eufy Security.