1.N,High standard to dust-proof,waterproof and high temperature proof. 2. Real-time display of highly accurate tire temperature and pressure data of 3 wheels at the same time 3. Extend tire life, balance tire pressure, the of motorcycles 4. PSI, BAR two kinds of pressure unit optional, and two kinds of temperature unit optional 5. TPMS dedicated radio frequency technology, the sensor real-time updates data, alarm when tire pressure and temperature are abnormal Three Wheeled Motorcycle:Suitable for tricycle with single wheel in rear. Intelligent AI Chip:Air leakage alarm,Low pressure alarm,High voltage alarm,Low battery alarm,High temperature alarm. 2 Units:2 Units PSI, BAR can choose. Installation Attentions Display parameters: Battery Time: 3h use per dayx15days Temperature setting range : ( 60 ~ 110 ) Working temperature: (- 20 ~ +80 ) Storage temperature: (- 30 ~ + 85 ) Receiving frequency: 433.92MHz 20.00MHz Detection Pressure Range: 0.1 ~ 5.0bar Sensor parameters: Working temperature: (- 40 ~ + 105 ) Storage temperature: (- 40 ~ + 120 ) Pressure range: 0 ~ 116PSI (0 ~ 8bar) Pressure accuracy: 0.15PSI ( 0.01bar) Temperature accuracy: 3 Transmission frequency: 433.92MHz 20.00MHz size:50x50mm Material:PVC colour:Black Package Contents: 1 x display 3 x External sensor 3 x Anti-theft nut 1 x wrench 1 x bracket 1 cord 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.