Powerful TPMS: Monitors tire pressure and temperature condition in real time, which will transmit realtime 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 jeep, offroad vehicle, minibus, and sedan car, etc.Digital display: Includes a TPMS receiver, four external sensors, and a U disk. The realtime data of tires will 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 builtin button batteryWorking voltage: 2.1 3.5VWorking temperature: minus 30 plus 60 Deg.CTemperature measurement range: minus 30 plus 85 Deg.CPressure measurement range: 0 116 psiTransmission frequency: 433.92MHzColour:BlackMaterial:Metal+PlasticPackage Contents:1 * Receiver4 * External Sensors1 * U DiskOnly 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 +/ 13cm.