This solar power wireless tricycle tire pressure monitoring system, uses durable ABS shell and selected electronic components, works great to monitor the pressure and temperature of tires automatically during the driving, and provides advanced alert for dangerous status, such as quick air leakage, low/high pressure, and high temperature. Let you drive assuringly. Features: Solar power & USB charging Equipped with solar panel on the top and built-in rechargeable lithium battery, it provides 2 charging ways, ensures the tire pressure monitoring system will work continuously. Compact size of high accuracy Measuring 5.3*5.3*3.4cm size, this tire monitor with high quality chip, just occupies little space, simultaneously realizes wireless intelligent sensitive sensing--strong aiti-interference ability and stable signal. Real-time monitoring & alarm The TPMS enables to monitor and display the tire pressure and temperature in real time, gives visual and sound warning synchronously while abnormal condition occurs, prolonging tire life and offering safety driving. LCD screen with sunshade This tire pressure monitoring system adopts LCD color screen for easy grasp of the tire situation; in addition, there is extra sunshade helps to read under stronglight. Wide application Comes with a holder, it is easily installed on the tricycle and widely used in various kinds of three-wheeled motor vehicles, to improve fuel efficiency, foresee air leakage, reduce tire worn-out, balance tire pressure, ensure safe driving. Specifications: Material: ABS Color: Black Display: LCD Solar Battery: 3.7V 1100mAh 1. Host Technical Parameters: Working Temperature: -20 celsius ~80 celsius Storage Temperature: -30 celsius ~85 celsius Power Supply Voltage: DC 5V Frequency: 433.92MHz+/-20.00MHz 2. Sensor Parameters: Working Temperature: -20 celsius ~80 celsius Storage Temperature: -30 celsius ~85 celsius Pressure Range: 0~6.6Bar Pressure Accuracy: +/-0.1Bar Accurate Temperature: +/-3 celsius Emission Power: less than 10dB Frequency: 433.92 MHz+/-20.00 MHz Tire Pressure Monitor Size: 5.3*5.3*3.4cm/2.21*2.1*1.3in Tire Pressure Monitor Weight: 63g / 2.22oz Package Weight: 260g / 9.17oz Package Size: 18*13*4.5cm/7.1*5.1*1.8in Note: Due to manual measurement, there may be deviation. Due to lighting, the picture and material object may slightly differ in color, please in kind prevail.? Packing List: 1 * Tire Pressure Monitor 3 * Sensor 1 * Spanner 2 * Nut 1 * Holder 1 * USB Power Line 1 * User Manual