Powerful TPMS: Monitors tire pressure and temperature condition in real time, which transmit real-time data to the DVD of your car to remind the driver for the comfortableness of vehicle and driving safety. Wide application: This system is widely suitable for vehicle with four tires and the maximum pressure of the tire is below 8 bar, such as a commercial car, for , off-road vehicle, minibus, and sedan car, etc. Digital display: Includes a TPMS receiver, four external sensors, and a U disk. The real-time data of tires be sent to the DVD through USB port, so you can know the status of your car easily and comfortably from the DVD. 4 Internal sensors: Provides four sensors, which are suitable for using in any type of weather. Besides, they are in high sensitivity and good accuracy for measuring pressure and temperature. External sensor: Battery: Sensor built-in button battery Working voltage: 2.1 - 3.5V Working temperature: minus 30 - plus 60 .C Temperature measurement range: minus 30 - plus 85 .C Pressure measurement range: 0 - 116 psi Transmission frequency: 433.92MHz Colour:Black Material:Metal+Plastic Package Contents: 1 * Receiver 4 * External Sensors 1 * U Disk Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.