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: 433.92MHz Power Supply: USB power supply, solar power supply Operating Voltage: DC 5V Pressure Unit: bar/psi Temperature Unit: ℃ / ℉ Operating Temperature: -20 -- 85℃ Storage Temperature: -40 -- 125℃ Tire Pressure Detector Parameters: Transmission Frequency: 433.92MHz Pressure Range: 1.0-6 bar/ 0-15 bar Default Low Voltage Alarm Value: 2.8 -- 6 bar/ 3-13 bar Default High Voltage Alarm Value: 6 bar/15 bar Pressure Accuracy: ±0.1 bar / ±1.5 psi Operating Voltage: DC+ 2.0-3.6V Operating Temperature: -20 - 85℃ Storage Temperature: -40 - 125℃ Waterproof Level: IP67 Battery: 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 x Tire Pressure Monitor12 x Sensor12 x Anti Theft Nut1 x Anti Slip Pad1 x USB Data Cable1 x Wrench1 x User Manual1 x Bracket