Features Size:The water overflow sensor detector is easy to install and easy to use. The sensor size is 30 x 12 mm / 1.18 x 0.47 inches and the size of the alarm housing is 98 x 46 x 22 mm / 3.85 x 1.81 x 0.86 inches Low Power Consumption: Alarm and sensor to detect water leaks have low power consumption, with reverse input protection, no fear of burnout Sensitive use: the flood alarm leak detection is sensitive. After alarming, please wipe the water on the sensor, otherwise the alarm will continue. The housing of the warning device is not waterproof, please keep it away from water sources. 120 dB: the overflow detector in the bath has a 120 dB loud warning sound that can remind you in time until the water dries or the sensor is switched off Application: the water overflow sensor detector is widely used in aquariums, water tanks, kitchens, warehouses, garages, solar water heaters and other places where water easily overflows Functions: This is a practical water leak alarm with clever design that is easy to install and use. Low power consumption, reverse input protection design without worrying about burning. Sensitive sensor is gold plated and suitable for mineral water, drinking water, raindrops and distilled water, etc. 120 dB loud alarm sound keeps the alarm to notice you until the water is dry or the sensor is switched off. Widely used for aquarium, water tank, kitchen, warehouse, garage, solar water heater and so on. Specifications: Alarm sound: ≥120 dB. Sensor size: 30 x 12 mm/1.18 x 0.47 inches. Size of the alarm case: 98 x 46 x 22 mm / 3.85 x 1.81 x 0.86 inches. Wire length: approx. 1 metre/39.37 inches. Battery: 9 V (not included). Note: 1. Dry water on the sensor after the alarm, otherwise it will be continuously alerted. 2. The alarm case is not waterproof, so please keep it away from water. Package includes: 1 x water leak alarm (battery is not included). Package List