TS-FT003 Ultrasonic Liquid Level Meter for Water Tank 4.3 Inch Digital Display Solar Charging Water Level Monitor 【Versatile Display Functions】Backlight on/off,12/24-hour time format,and indoor/water tank temperature display in ℃/℉ for comprehensive monitoring. 【Advanced Alarm System】Features high/low water level alarms,customizable alarm duration,and visual indicators for enhanced safety and control. 【Solar-Powered Efficiency】Utilizes solar charging technology for eco-friendly and continuous operation,ideal for long-term use. 【Wireless Transmission】Offers a wireless range of up to 100 meters in open areas,allowing flexible placement of the receiver. 【High-Precision Measurements】Accurate water level detection with 0.01m resolution and ±0.05m accuracy,suitable for various tank sizes. 【Weather-Resistant Design】IP65-rated transmitter ensures protection against water splashes from any direction,perfect for outdoor installations. 【User-Friendly Interface】Large 4.3-inch screen with intuitive LCD bar graph display for easy reading of water levels and other data. Specifications: Model: TS-FT003 Display Size: 4.3 inches Body Material: ABS Water Level Measurement Range: 1-5m Water Level Resolution: 0.01m Water Level Accuracy: ±0.05m Indoor Temperature Range: 0℃ to 50℃ (-32℉ to 122℉) Water Tank Temperature Range: -40℃ to 60℃ (-40℉ to 140℉) Temperature Resolution: 0.1℃ Temperature Accuracy: ±1℃ Wireless Transmission Range: Up to 100m in open areas Transmitter IP Rating: IP65 Alarm Duration: 120 seconds Unit Display Options: Meters/Feet Power Source: Solar charging with battery backup Package included: 1 x Receiver 1 x Transmitter 2 x Installation Screw 1 x TYPE-C Power Cord 1 x English and Chinese User Manual