Advanced Monitoring: Utilize cutting-edge ultrasonic technology to keep a precise check on your water tank levels. This smart sensor 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:A:wifi(AU Plug)/B:wifi(UK plug)/C:Zigbee (UK Plug)/D:zigbee(AU Plug) Wifi transmission is faster and consumes more power. /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:AU Plug,it applies to Australia and so on 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 will 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.