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. Sensor power supply: less than equal 100mA@ 5V DC Network mode: 2.4G WiFi Liquid level range: 0.1m-4m Accuracy: ±0.02m Operating temperature: -20℃-50℃ Protection level: IP65 Due to different batches, there may be differences in product appearance and printed text, which not affect use. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-240V Colour:Yellow Material:ABS Package Contents: 2 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.