1. Tire pressure and tire temperature are displayed at the same time. 2. Alarm for abnormal tire pressure and temperature: Alarm when tire pressure is higher than 3.0 bar (default value) Alarm when tire pressure is lower than 1.8 bar (default value) Alarm when tire temperature is higher than 70¡æ (default value ) The default value can be adjusted according to actual needs. 3. Two-color ambient light design, the blue light is on when the tire pressure is normal, and the red light is on when the tire pressure is abnormal. 4. Multiple power supply methods: The receiver supports USB 5V power supply, car fuse box ACC 12V power supply, car OBD 12V power supply 5. The car battery voltage detection can effectively prevent the car battery from igniting and starting the vehicle when the voltage is low. 6. The temperature inside the car is monitored, and the temperature inside the car is clear at a glance 7. The digital clock display effectively reduces the drivers head down looking at the watch or mobile phone. Specification: Receiving frequency: 433.92MHz. Power supply mode: USB power supply, ACC power supply, OBD. Working voltage: DC 5V-12V input. Pressure unit: bar or psi. Temperature unit: ¡æ or ¨H. Working temperature: -20-and85¡æ. Storage temperature: -40-and125¡æ. External sensor: Transmitting frequency: 433.92MHz. Pressure range: 0-8 bar or 0-116 psi. Default low pressure alarm value: 1.8 bar. Default high pressure alarm value: 3.0 bar. Pressure accuracy: 0.1 bar or 1.5 psi. Working voltage: DCand2.0-3.6V. Waterproof level: IP67. Battery: Built-in CR1632 button battery. (the battery can be removed and replaced by yourself)