Warning: Product displays by cellphone. During driving, please be careful when viewing Vehicle Sensors Tire Pressure and temperature in cellphone. If Vehicle Sensors Tire Pressure accelerates down or up continuously, please parking and check if theres any problem with the tire. This product can read Vehicle Sensors Tire Pressure and temperature, but it cannot avoid sudden accident caused by tire.Its important to use. Tire with high quality. Slightly tire leakage makes Vehicle Sensors Tire Pressure decreases over time is normal. It has nothing to do with this product installation. Specification: Material: ABS, Copper Bluetooth Version: Bluetooth 5.0 Working Voltage: 2.1-3.3V Quiescent Current: 1 uA Bluetooth Operating Frequency: 2.4GHz Bluetooth Transmit Power: 4dB Response Time: 4s Display Method: APP Waterproof Grade: IP67 Working Humidity: 95% MAX Vehicle Sensors Tire Pressure Monitoring Range: 0-100PSI Vehicle Sensors Tire Pressure Monitoring Error: +3PSI Working Temperature: -30~70 Storage Temperature: -30~70 Battery Life: 2-3 Years Battery Capacity: 140mAh (External) Size: 22*18mm Number Of s: 2PCS/3PCS/4PCS (Optional) Alarm Function: High Pressure, Low Pressure, High Temperature Suitable For: Car, Motorcycle, SUV, MPV, RV, ATV Feature: Dynamically monitor Vehicle Sensors Tire Pressure on 4 wheels at same time, prevent damage from flat tire, Improve fuel efficiency, prolong tire life span, ensure driving safety. It was designed as a direct Vehicle Sensors Tire Pressure monitoring system, installing pressure and temperature on the tire, then displaying the real-time data on phone (Android , IOS, IPad) through Bluetooth connection, During travel, Vehicle Sensors Tire Pressure and temperature displayed in real time and send alert when statistics abnormal. For your safety. TPMS supports both Android4.0 and above; supports IOS7.0 and above, requires Bluetooth 5.0 or above. APP Download And Installation Method: System requirements: support Android 4.0 and above systems or lOS7.0 and above systems; Search the APP name in the App Store to download and install (name: SYTPMS or TPMS); For Android phones, please scan the QR code to install directly. Note: If the date of cannot be get , pls re-install the . (please install slowly to make the Vehicle Sensors Air Pressure fully contact the ) Household products, not for commercial use. Stop using the machine immediately if the motor heats up. Use for 1-2 hours at most each time. Package Included: 4 x Externer 4 x Screw 1 x Wrench 1 x User Manual