Feature 1Performance: High efficiency solar panels, long battery life, large capacity built in metal lithium battery, unimpeded battery life in cloudy days. 2Accurate Monitoring: Accurately monitor tire pressure and tire stability throughout the process, reduce the danger caused by tire problems while driving. 3LCD Display: LCD high precision liquid crystal display helps you read and observe the condition of your vehicle's tires while driving. 4Excellent Features: Loud volume alarm sound warning, various tire pressure units are optional and support tire position swap. 5Stable Characteristics: Long receiving distance and stable signal, IP67 waterproof and and can be used in all climates and weather.Item Type:Tire PressureMonitor .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Material: ABSReceiver Parameter:Reception Frequency: 433.92MHzPower Supply: USB power supply, solar power supplyOperating Voltage: DC 5VPressure Unit: bar/psiTemperature Unit: / Operating Temperature: -20 -- 85Storage Temperature: -40 -- 105Transmission 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: 0.1bar / 1barOperating Voltage: DC+ 2.0-3.6VOperating Temperature: -20 -- 85Storage Temperature: -40 -- 125Waterproof Level: IP67Battery: 6 CR1632 button battery 120mAh 3.0V (shipped with built in battery)Monitor Battery 1 lithium battery 5000mAh 3V (shipped with built in battery)Battery Life: 1.5-2 years typicalPackage List1 x TirePressureMonitor6 x Sensor6 x Anti Theft Nuts1 x Anti Slip Pad1 x USB Data Cable1 x Wrench1 x User Manual