Description 1 x Tire Pressure Monitor 4 x External Sensor 1 x Anti-Slip Pad 1 x Battery Changing Tool 4 x Anti-dismantling Rings 1 x Wrench 1 x User Manual 1 x USB CableFeatures: 1. Solar powered Monitor, with a micro USB charging port for no-sunlight situiations. 2. Wireless external sensor technology. 3. Easy to install, IP67 waterproof sensors, wont worry about rainy days. 4. LCD screen displays Real Time monitored pressure and temperature of 4 tires at once. 5. With tire leaking warning. 6. With beep warning for abnormal tire pressure and temperature. 7. PSI/BAR pressure unit selectable. 8. Celsius/Fahrenheit degree (C/F) Temperature unit selectable. 9. Universally fits most cars, vehicles, SUVs, etc. Specifications: Tire Pressure Monitor Operating Voltage: 3.7-5V Storage Temperature: -30C-90C working Temperature: -30C-85C RF Emission Frequency: 433.92MH50KHz RF Signal Sensitivity: -90dbm Display Mode: LCD Color Bright Ccreen Surrent: 6mA Black Screen Current: 4mA Size: 85*95MM External Sensors Battery Life: 24 Months Operating Voltage: 2.1-3.6V Storage Temperature: -30C-90C working Temperature: -30C-85C Temperature Resolution: 2C25C Pressure Range: 0-5.0Bar Pressure Resolution: 0.1Bar Waterproof Grade: IP67 Transmitted Power: 10dBm Emission Frequency: 433.92MHz Lithium Battery: CR1632(Battery Built-in) Size: 21mm(D)*17mm(H)