Specification: battery service life:≥5 years Operating temperature: -40°C -- 125°C Storage temperature: -40°C T-125 °C Operating humidity: ≤90% Operating frequency: 315 MHz&433 MHz Maximum pressure range: 800 kPa Temperature reading range: -40°C -- 125°C Temperature reading accuracy: ±5°C Sensor reading accuracy: ±15% Transmission power: 5-8dBm Battery: 3.0 V Fit for: Universal Features: *Function: 1.Monitors the indicators of each tire independently and transmits the real-time data,maintaining vehicle balance to ensure driving safety. .