1. Key switch control: Turn the switch on when needed and off when not in use; 2. Sensitive detection: When water leakage is detected, it emits an alarm sound up to 130 decibels with a fast response time of 0.1 seconds to alert the user; 3. Equipped with a 1-meter ultra-long detection line for easy monitoring; 4. Energy-saving design with low power consumption, capable of up to 2 years in standby mode. Product name: Water Leak Detector Water Level Alarm Power source: 6F22 battery (battery not included) Intended use: Suitable for kitchen, bathroom, heating systems, warehouse, store, workshop, and other locations Color: White Material: ABS Size: 98x46x22mm Package Contents: 1 x Alarm Note: Other items not included. Note: Slight color variations may occur due to lighting and display differences. Measurement may vary by +/- 1-3cm.