About TPMS: Features: TPMS for Android Car Player / Android GPS Navigation. The TPMS receiver can be connected to Android car DVD via USB port. Tire pressure and temperature data displaying on Android Car DVD screen. Sound Alarm via car speakers and screen alarm when abnormality occurs. Prevent tire burst, extend the tires life and save fuel. Sensor wakes up automatically when tire starts running. Quickly update tire pressure and temperature data to Android TPMS App. Automatically sleep to save energy after parking. 6 Protections for Safe Driving: High Pressure Alarm Low Pressure Alarm Air Leakage Alarm High Temperature Alarm Battery Low Power Alarm Sensors Disconnection AlarmSpecification: Internal Sensor : Working Temperature: -40-125 Working Frequency : 433.92MHZ Battery Model:CR2050 300mAh Battery Life:2-4 Years Tire monitoring range value:0 bar-8 bar /0-116psi Working Voltage:DC 5V WaterproofIP67 Chip:Senasic External Sensor : Working Temperature: -20-60 Working Frequency :433.92MHZ Battery Model:CR1632 180mA Battery Life: 1-2 Years Tire monitoring range value:0 bar-8bar /0-116psi Working Voltage:DC 5V WaterproofIP67 Chip:Senasic Package Included: 1 SetxTire Pressure Monitoring System About Portable Tire Tester: Features: 100% Brand new and high quality LCD screen display with backlit for easy reading Small portable design, easy to hold and operate Pressure units available: PSI, BAR, KPA, KGF/CM2 Accurate and quick measuring, reliable to use Manual power on/off and auto power off for power saving LED light at gauge nozzle, convenient to use even at night This Mini Tire Pressure Gauge with easy-to-read LCD screen, is used to monitor your tyre pressure, thereby extending tire life, increasing fuel efficiency and ensuring your safety.It is suitable for measuring tire air pressure of cars, motorcycles,etc. Specifications: Test range: 0-150PSI Accuracy: 1PSI Resolution: 0.5PSI Units:PSI, BAR, KPA, KGF/CM2 Power supply: 1*3V CR2032 button battery (Included) Product size: As the picture Material: ABS Package included: 1* Tyre Pressure Tester Do drop