Product Description: Suitable for car tire preure range le than 3.5 Bar, like paenger cars, off-road vehicles, commercial vehicles, MPV, SUV, minivans, and trucks. Know the real time air preure and temperature for 4 tires on the screen. Gives you early warning of air leaks and other abnormal tire situations so corrective action can be taken and tire life can be extended. When the air preure or temperature of any tire goes outside the predetermined range,both the monitor display and an audible alarm warn you.Youre also warned when the battery of a tire sensor is low. Specification: Display screen:LCD Operating temperature: -30C-85C Working voltage: 3.7-5V Daytime operating current/Night operating current/Standby current: Transmiion frequency:433.92MHZ+/-20KHZ Transmiion mode:FSK Preure unit: BAR/PSI Charging ways:Solar energy/USB Battery:1*303450 3.7V 500mAh Sensor Operating temperature: -30C-85C Working voltage: 3.7-5V Standby current: Transmiion frequency: 433.92MHZ+/-20KHZ Transmitted power:8dBm Open Distance:30M Battery(each sensor):1*CR1632 3V Monitor size: Approx.80*73*15mm Sensor size(each): Approx.2*2*2cm Package Includes: Set 1 1 x TPMS Receiver host 4 x Sensor 4 x Anti-lost nut 1 x Hex spanner 1 x Anti-slip Pad 1x USB cable 1 x User manual Set 2 1 x TPMS Receiver host 5 x Sensor 4 x Anti-lost nut 1 x Hex spanner 1 x Anti-slip Pad 1x USB cable 1 x User manual