YoLink Water Leak Sensor 4 105 dB Alarm Kit: 6-Pack + Hub

Highlights from the listing

• What’s Included: This package includes 1 YoLink Hub and 6 Sensors—7 items total. The “Number of Items: 7 Pack” refers to the 7 individual products in the package, not 7 sensors.
• Catch leaks at home or away: Includes 6 Water Leak Sensor 4 units and 1 YoLink Hub. Each sensor has a 105 dB alarm when enabled. Get app, email and SMS alerts through a powered, online YoLink hub (SMS limits apply). Name sensors by room to know where to check.
• LoRa coverage up to 2034 feet: Low-power LoRa radio connects sensors to the hub across large properties, helping you monitor basements, laundry rooms and other indoor leak-prone areas. Up to 2034 feet (620 meters) in open air; walls, metal and placement affect actual range.
• Add automatic shutoff, even during outages: Control-D2D lets a sensor directly trigger multiple compatible YoLink shutoff devices, including EVO, Bulldog, motorized valves and FlowSmart ultrasonic meter/shutoff systems. Once paired, local control works without internet or hub power while sensors and shutoff devices remain powered and in range. Choose battery-powered shutoff options for operation during AC outages. Shutoff hardware sold separately.
• Up to 5 years of battery life: Water Leak Sensor 4 includes 2 installed, replaceable AAA batteries per sensor for fewer battery changes under sinks and behind appliances. Life varies with usage, alarms and temperature. Check battery status in the app.
• Plug, scan and place: Plug in the included hub and connect it by Ethernet or 2.4 GHz Wi-Fi. Scan device QR codes in the YoLink app, then place sensors near water heaters, sinks or washing machines. Top and bottom probes detect drips and pooling water. No sensor wiring or individual Wi-Fi pairing required.

From the product's Amazon listing. We haven't tested this product.