1. One key switch control, turn on the switch when needed and turn it off when not needed; 2. Sensitive. When the detector detects excess, it will emit an alarm sound of up to 130 decibels with a response time of 0.1 seconds to remind the owner to take action; 3. Equipped with an ultra-long 1 meter detection line, easy to detect; 4. Energy saving, low power consumption, standby time up to 2 years. Description: Product Name: Water Level Alarm Leak Detector Power supply mode: 6f22 battery (excluding product) Product use: kitchen, bathroom, heating, warehouse, shop, workshop and other places. Color: white Material: ABS Size: 98x46x22mm Package Contents: 2 x Alarm Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.