Feature: 1. *Tire Pressure Monitoring System lets you get real-time tire pressure data, temperature data and status, always keeping an eye on car performance. 2. *Combined with the solar energy display that is green, low carbon and renewable, enabling you to charge the device faster and conveniently. 3. *4 wheels\u0027 tire pressure and temperature display simultaneously, high/low tire pressure alarm, high temperature alarm and air leakage condition alarm. 4. *The real-time tire pressure data, reliable alarm system delivers alerts once an unusual situation occurs, very convenient and practical. 5. *adopts wireless transmission, and no wire connection required, easy installation, as well as easy operation. 6. Tire Pressure Monitoring System lets you get real-time tire pressure data, temperature data and status, always keeping an eye on car performance. 7. Combined with the solar energy display that is green, low carbon and renewable, enabling you to charge the device faster and conveniently. 8. 4 wheels\u0027 tire pressure and temperature display simultaneously, high/low tire pressure alarm, high temperature alarm and air leakage condition alarm. 9. The real-time tire pressure data, reliable alarm system delivers alerts once an unusual situation occurs, very convenient and practical. 10. adopts wireless transmission, and no wire connection required, easy installation, as well as easy operation. Specification: Features: *Tire Pressure Monitoring System lets you get real-time tire pressure data, temperature data and status, always keeping an eye on car performance. *Combined with the solar energy display that is green, low carbon and renewable, enabling you to charge the device faster and conveniently. *4 wheels' tire pressure and temperature display simultaneously, high/low tire pressure alarm, high temperature alarm and air leakage condition alarm. *The real-time tire pressure data, reliable alarm system delivers alerts once an unusual situation occurs, very convenient and practical. *adopts wireless transmission, and no wire connection required, easy installation, and it automatically sleep when there is no vibration. Specifications: Monitor: Display screen: LCD Operating temperature: -20℃ ~ 80℃ Working voltage: 3.5-4.2V Daytime operating current/Night operating current/Standby current:＜20mA/＜4mA/＜50uA Transmission frequency: 433.92MHZ+/-20KHZ Transmission mode: FSK Pressure unit: BAR/PSI Charging ways: Solar energy/USB(USB cable is not included) Battery: 1 * 402040 3.7V 300mAh Monitor size: Approx.9.5*3*1.5cm Monitor weight (with solar panel): Approx.71g Sensor: Operating temperature: - 40℃ ~ 125℃ Working voltage: 2-3.6V Standby current:＜1uA Transmission frequency: 433.92MHZ+/-20KHZ Transmitted power:＞8dBm Open Distance:＞30M Battery(each sensor): 1* CR2050 3V 330mAh Sensor size(each): Approx. 6.5*3.6*1.5cm Sensor weight(each): Approx.30g Package Size: 21*15*6cm / 8.27*5.91*2.36in. Package Weight: 282g Package List: 1 * Displayer 4 * Internal Sensors 4 * Cycle Valves 1 * Non-slip Mat 1 * Bag of Screws 1 * User Manual (English) Package List: 1 * Displayer 4 * Internal Sensors 4 * Cycle Valves 1 * Non-slip Mat 1 * Bag of Screws 1 * User Manual (English)