Feature: 1. Power Supply: Designed with 2 charging ways ensure the monitor will work continuously, rechargeable lithium battery can increase the tires's life, larger solar panels ensure faster charging efficiency. 2. Real Time Monitor: Real time monitoring the temperature and pressure with high degree accuracy for 6 tires simultaneously, IP67 waterproof, sealed against dust, with high accuracy. 3. Receiver Parameter: Equipped LCD high precision liquid crystal large screen display, which has loud volume alarm sound warning, with working voltage of DC 5V. 4. Main Functions: Various tire pressure units are optional, the tire pressure monitoring system has long receiving distance, stable signal, and support tire position swap. 5. Practical: Both the sensor and detector have built in batteries, and equipped with accessories such as anti theft nuts, anti slip pads, wrenches, charging cables, etc., ensuring simple installation. Specification: Item Type: Tire Pressure Monitoring SystemMaterial: ABSReceiver Parameters Receive Frequency: 433.92mhz Power Supply Mode: Usb Power Supply, Solar Power Supply Working Voltage: Dc 5v Pressure Unit: Bar / Psi Temperature Unit: ℃ / ℉ Working Temperature: -20 -- 85℃ Storage Temperature: -40 -- 105℃ Transmit Frequency: 433.92mhz Pressure Range: 1.0–6 Bar/ 0-15 Bar Default Low Pressure Alarm Values: 2.8–6 Bar/ 3-13 Bar Default High Pressure Alarm Value: 6 Bar/15 Bar Pressure Accuracy: ±0.1 Bar / ±1bar Working Voltage: Dc+2.0 – 3.6v Working Temperature: -20 -- 85℃ Storage Temperature: -40 -- 125℃ Waterproof Level: IP67 Battery: 6 Cr1632 Button Batteries 120mah 3.0v (Shipped With Built-In Battery) Display Battery 1 Lithium Battery 5000mah 3v (Shipped With Built-In Battery) Battery Life: 1.5-2 Years . Package List: 1 x Tire Pressure Monitor6 x Sensor6 x Anti Theft Nut1 x Anti Slip Mat1 x USB Cable1 x Wrench1 x Instruction Manual