Features: 1.LCD digital display, beautiful and compact. 2.Two rounds of tests are carried out at the same time, one screen displays tire preure and tire temperature. 3.The tire preure unit Psi and Bar can be switched arbitrarily, universally used in the world. 4.Adjustable preure alarm value, suitable for two wheels of different models. 5.Magnetic USB charging port can quickly charge mobile devices at any time. Specification: Material: ABS + PC Color: black Voltage: 5V Motorcycle host size: about 50* 50* 28mm/1.97*1.97*1.10in Motorcycle host accepts center frequency: 433.92MHz Receiving sensitivity of motorcycle host: -110dBm Operating temperature range of motorcycle host: -20-75 Adjustable range of high and low voltage alarm value: 0.3-6.2Bar (5-90Psi) Sensor working temperature: -30-80 Sensor preure monitoring range: 0-8Bar (116Psi) Sensor preure accuracy: 0.1Bar (1.5Psi) Sensor temperature accuracy: 3 Transmitting power of sensor: Sensor transmiion frequency: 433.92MHz Sensor size: about 21x17mm (height * diameter)/0.83*0.67in Sensor weight: about 8 gram Sensor battery model: CR1632, replaceable sensor Battery life: 2 years (1-2 hours per day, this is the normal commuting time) Note: After opening the box, it is neceary to scan the QR code affixed in the box Packing List: 1*Display 2*External Tire Preure Sensor 1*Removal Tool Bag 1*Fixed Bracket 1*Charging Cable