TPMS receive-display technique specifications: Central frequency: 433.920MHz Testing sensitivity: above and equal to -75dBm Receiving voltage: 12 or 24V DC Maximum working current: 110mA Operation temperature: -40 to +80 degrees Celsius TPMS transmitter technique specifications: Power output: equal and below -35dBm Output frequency: 433.92 + 0.04MHz Rated temperature: + 50kHz Maximal detection pressure: 9.9Bar (9.9Mpa) Pressure detection precision: +-0.1Bar(0.01Mpa) Voltage: 3V DC Transmitter wight : 25 to 17g Operation temperature: -40 to +125 degree Celsius