Universal Car Wireless Solar Energy TPMS Tire Pressure Alarm System External Tire Monitor

Host parameter:
1. Operating voltage: 3.7-5V
2. Storage temperature: -30 -90 degree Celsius
3. Working temperature: -30 -85 degree Celsius
4. RF Emission frequency: 433.92MH+/-50KHz
5. RF Signal sensitivity: -90dbm
6. Display mode: LCD Color
7. Bright screen current: less than or equal to 6mA
8. Black screen current: less than or equal to 4mA
External sensor parameter:
1. Operating voltage: 2.1-3.6V
2. Storage temperature: -30 ~90 degree Celsius
3. Working temperature: -30 ~85 degree Celsius
4. Pressure range: 0-5.0Bar
5. Pressure resolution: +/-0.1Bar
6. Waterproof grade: IP67
7. Transmitted power: less than or equal to 10dBm
8. Emission frequency: 433.92MHz