Dual Power Supply – Built-in rechargeable lithium battery with solar panel and USB charging support for extended use. 6 Built-in Sensors – Includes 6 replaceable battery sensors; can switch to 4-sensor mode when needed. Real-Time Monitoring – Accurate, live updates on tire pressure and temperature for each wheel. Safety First – Prevents tire blowouts, saves fuel, reduces tire wear, and extends tire lifespan. Custom Display Brightness – Three adjustable levels to suit day or night driving. High-Temp Safe Battery – Explosion-proof lithium battery supports fast charging and long-lasting performance. Selectable Units – PSI/Bar for pressure and °C/°F for temperature. Pre-Matched Sensors – Each sensor is pre-configured to its position; ready to use out of the box. Instant Alerts – Dedicated wireless RF tech with fast alarm and screen flashing when abnormal pressure/temperature is detected. Freescale Chip – Six-in-one solution for reliable signal and high accuracy. DIY Sensor Battery Replacement – Easy to replace CR1632 batteries. New sensors require re-pairing. Receiving Frequency: 433.92 MHz. Battery Capacity: 2200 mAh. Battery Voltage: 3.7V. Input Voltage: DC 5V. Working Temp: -20°C +80°C. Storage Temp: -30°C +85°C. Dimensions: 120 x 34 x 45 mm. Transmission Frequency: 433.92 MHz. Pressure Range: 0 116 PSI (0 8 Bar). Pressure Accuracy: ±1.5 PSI (±0.1 Bar). Working Temp: -40°C +105°C. Storage Temp: -40°C +120°C. Battery Capacity: 120 mAh. 1x TPMS Display Unit. 6x Built-in Sensors (with batteries). 1x USB Charging Cable.