Advanced Monitoring: Utilize cutting-edge ultrasonic technology to keep a precise check on your water tank levels. This offers a hassle-free setup and real-time water level monitoring. Instant Notifications: Receive immediate alerts on your smartphone whenever the water level changes. Stay informed and prevent overflows or empty tanks with timely updates. App Integration: Seamlessly control and monitor your water levels from anywhere using the dedicated iOS or Android app. Enjoy the convenience of remote access to your sensor's data and settings. Wide Compatibility: Designed to work effortlessly with a variety of tank types and sizes, ensuring reliable performance and compatibility. Specification:C:Zigbee (UK Plug) Zigbee transmission is slower and is suitable for low-power usage environments(Note: the zigbee gateway is sold separately. The gateway must be paired with tuya3.0.). Voltage: AC100-240V Plug Type:UK plug,it applies to Malaysia, the United Kingdom and so on. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: Yellow Material: ABS Package Contents: 1 x Water Tank Monitor Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.