Temperature, RH and barometric pressure (only on model 88163) data logger that can store up to 48.000 readings. Temperature measuring range: -30 °C up to 70 °C, resolution 0,1 °C and accuracy ±0,5 °C. Humidity range: 0,1 - 99% RH (0,1% resolution and 3% accuracy). Barometric pressure (88163): 300 - 1100 hPa (resolution 0,1 hPa and 3 hPa accuracy). LED display and alarm, minimum, maximum and mark function. EN 12830. Integrated USB that can download data to PC and generates PDF/Excel reports automatically containing summary, graphs and detailed data. Completely programmable: 6 languages, sampling interval, start delay, alarm delay, unit, alarm range, alarm type, password and user name. IP65 (does not include sensor area). Power supply: 2 x 3,0 V CR2032 (included). 9 month battery life time. Warranty 1 year