Smart Car TPMS Tire Preure Monitoring System Digital TMPS LCD Display USB Auto Security Alarm With 4 External Tire Preure SensorFeature: - Tire leak warning and temperature balancing. - The display can be adjusted from multiple angles. - Adjustable screen brightne. - Mounted on dashboard or front windshield. - Buzzer alarm and display alarm value. -Can support four tires tire preure temperature monitoring at the same time. - Visual and audible warning of abnormal preure and temperature. Specification: Material: ABS Receiving Frequency: 433.92MHZ0.02MHZ Working Temperature: -20~85 Charging: USB Sleep Current: 100MA Working Current5MA Working Voltage: 3V Number Of Sensors: 4PCS (External) Sensor Battery Model: CR1632 Preure Range: 0-3.5BAR