Standalone Water Leak Alarm, 90 dB Overflow Sensor

Place this sensor on the floor next to a washing machine, water heater, sink or tank so you hear a leak before it spreads. When its probe touches water it sounds an on-site 90 dB alarm. This is the standalone version: it works on its own, with no app, Wi-Fi or phone notifications. Suitable for homes, shops, warehouses and garages. The supplier lists a 3 V operating voltage and an operating temperature of 0–70 °C. Package: one sensor.