Intelligent induction: When the car starts, the display will automatically turn on the vibration sensor, and sleep after 5 minutes of rest, no need to manually switchSecond-level alarm: the sensor sends data every 2 seconds/time, the host updates the data every 2 seconds/time, detects the tire condition at all times, and prompts "accident"Working temperature: battery high and low temperature protection Strictly pass the high and low temperature work testCharging mode: 1+1 charging mode Solar charging, 24-hour battery life, USB charging interface supports charging in rainy daysMaterial: ABSDimensions: 9 5 x 8 3 x 2 2cmWorking voltage: 3 7-5V Storage temperature -30C-90C Working temperature -30C-85C RF transmission frequency 433 92MH50KHzWorking current 6mAWorking voltage 3 7-5VDisplay mode: LCD color screenPacking list: 1x host+4x external sensor+1xusb interface+4xnut+1xwrench+1xinstruction