Weight 80 g excluding batteries / 120 g including batteries Dimensions 86 x 86 x 27 mm Enclosure Plastic, PC/ABS Operating conditions Temperature 0 to 50 °C Humidity 0 to 85% RH (non-condensing) Device Power Supply Battery Type 2 x 3.6V AA Lithium Batteries Expected Battery Life <10 years (Depending on configurations and environment) Device Logging Function Sampling Interval Configurable via NFC and downlink configuration Temperature Resolution: 0.1 °C Accuracy: ±0.2 °C Humidity Resolution: 0.1 % RH Accuracy at 25 °C: ± 2 % RH CO2 • Range, calibrated: 0 – 2000 ppm • Range, extended: 0 – 10000ppm • Accuracy, calibrated: ± 50 ppm / ± 3% of reading • Accuracy, extended: ± 10% of reading