Feature:1. Clear Display: Real time tire pressure and tire temperature display on 12 wheels, intuitive and clear, allowing you to focus on long trips or freight.2. 4 Alarm Modes: Tire pressure monitor has high and low pressure alarm, high temperature alarm and air leak alarm.3. Performance: Clear display allows you to read the data directly on the screen, fatigue driving reminder keeps you safe on the road.4. Power Supply Method: Support solar power supply and USB power supply, with high efficiency and stable performance.5. Excellent Features: IP67 waterproof, and can be used in harsh environments, high tire pressure detection accuracy and stable transmission signal.Specification:Item Type: Tire Pressure MonitorMaterial: ABSReceiver Parameters:Reception Frequency: 433.92MHzPower Supply: USB power supply, solar power supplyOperating Voltage: DC 5VPressure Unit: bar/psiTemperature Unit: / Operating Temperature: -20 -- 85Storage Temperature: -40 -- 125Tire Pressure Detector Parameters:Transmission Frequency: 433.92MHzPressure Range: 1.0-6 bar/ 0-15 barDefault Low Voltage Alarm Value: 2.8 -- 6 bar/ 3-13 barDefault High Voltage Alarm Value: 6 bar/15 barPressure Accuracy: 0.1 bar / 1.5 psiOperating Voltage: DC+ 2.0-3.6VOperating Temperature: -20 - 85Storage Temperature: -40 - 125Waterproof Level: IP67Battery: 12 CR1632 button battery 120mAh 3.0V (shipped with built in battery)Display Battery 1 polymer lithium battery 400mAh 3.7V (shipped with built in battery)Battery Life: 1.5-2 years typicalApplicable Model: Universal for truck RV all types of models.Package List:1 xTire Pressure Monitor12 x Sensor12 x Anti Theft Nut1 x Anti Slip Pad1 x USB Data Cable1 x Wrench1 x User Manual1 x Bracket