1. Real-time Water Level Monitoring: Track water levels at any time via the app to you don't run out of water unexpectedly. 2. Customizable Upper and Lower Limits: Set your maximum and minimum water levels to effectively prevent overflows or water shortages. 3. Remote Alerts and Notifications: Receive instant notifications on your phone when the water level exceeds the set limit, providing peace of mind even from a distance. 4.4-meter Cable for Flexible Installation: Easily mounts on tall tanks without any restrictions. 5. IP65 Waterproof Design: Built to withstand outdoor rain, dust, and splashes, ensuring long-term stable performance. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Color: As shown Material: plastic Voltage: AC220V Package Contents: 1* Liquid level sensor 1* Euro adapter 1 package of nails 1* English instruction manual 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.