Specification Battery Life——≥5 years Operating Temperature—— -40°C + 125°C Storage Temperature—— -40°C t + 125°C Operating Humidity—— ≤90% Operating Frequency—— 315 MHz & 433MHz Pressure Monitoring Range——100 – 900kPa Pressure Reading Accuracy—— ±10kPa Temperature Reading Range—— -40°C – 125°C Temperature Reading Accuracy—— ±5°C G Sensor Reading Accuracy—— ±15% Transmission Power—— 5-8dBm Battery—— 3.0 V Dimensions (W x H x D)——54.2 mm x 29.4 mm x 19.1 mm (Snap-in Sensor) Weight (Without Valve)—— 0.034lb .