Features: 1.LCD digital display, beautiful and compact. 2.Two rounds of tests are carried out at the same time, one screen displays tire pressure and tire temperature. 3.The tire pressure unit Psi and Bar can be switched arbitrarily, universally used in the world. 4.Adjustable pressure 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 pressure monitoring range: 0-8Bar (116Psi) Sensor pressure accuracy: 0.1Bar (1.5Psi) Sensor temperature accuracy: 3 Transmitting power of sensor: lt;10dBm Sensor transmission frequency: 433.92MHz Sensor size: about 21x17mm (height * diameter)/0.83*0.67in Sensor weight: about 8 grams 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 necessary to scan the QR code affixed in the box Packing List: 1*Display 2*External Tire Pressure Sensor 1*Removal Tool Bag 1*Fixed Bracket 1*Charging Cable