Bullet Points:1, Intelligent Detection: Ultra-high sensitivity, 3 induction contacts at the bottom, rapid induction alarm.2, Low power consumption: square battery, average life is 1 year.3, Multiple Ocns: suitable for water level alarm of swimming pool, kitchen, bathroom, warehouse, etc. water leak and overflow alarm.4, High volume: Sharp alarm sound greater than 85 decibels can quickly achieve the alarm effect.5, Environmental protection: Environmental protection ABS plastic, compact and practical. Specification:Material: ABSColor: WhiteSize: About 8.2 8.23cm/3.23*3.23*1.18inchVoltage: DC 9VProuge: 0.15ADought: ge; 85 decibelsBattery: qv square battery (average life 1 year) Measurement: 3 detection points at the bottomPacking List:1 Alarm1 Battery Matching1 Instruction