X-Sense Smart Water Leak Detector, Wi-Fi Water Sensor, an Accessory for SWS54 Water Sensor Kit, Single Pack, Model SWS51, 3-Pack

From the brand

Thermometer Hygrometer

Water Leak Detectors

Note: Compatible only with 2.4 GHz Wi-Fi (incompatible with 5.0 GHz); does not connect directly to the X-Sense Home Security App and connects via the base station (not included)
Expand Your Smart Home Your Way: The SWS51 is an accessory for SWS54 water detector kit (compatible with FS31 smoke alarm kit); long transmission distance of 1,700 ft (500 m); simply press the test/silence/pair button to connect the sensor to the base station and add up to 50 devices
Real-Time Notifications: When a water leak is detected, a push alert will be sent to your phone, so you’ll be alerted quickly even while you are not at home; you can share the device with your family members so they can also check the device status anytime, anywhere (Note: The SWS51 water leak sensor needs to be paired with the X-Sense SBS50 base station to be used.)
Know from Anywhere: Once triggered, the water leak sensor and base station will sound simultaneously at a volume of up to 110 dB – loud enough for everybody to hear; simply mute the alarm via the app or push the silence button on the base station or water leak sensor
High Sensitivity: The SWS51 water leak detector is equipped with 2 top sensor probes and 4 bottom sensor probes to detect water leaks and floods; provides an early warning of water damage and is ideal for kitchens, bathrooms, basements, and more