Weight G 570 g Measuring Range Air Temperature 50 Degree Celsius Measuring Range Dew Point Temperature 50 Degree Celsius Measuring Range Relative Humidity 100 Percent Measuring Accuracy Air Temperature 40 Degree Celsius Measuring Accuracy Air Temperature Others 2.0 Degree Celsius Measuring Accuracy Dew Point Temperature 40 Degree Celsius Measuring Accuracy Dew Point Temperature Others 2.0 Degree Celsius Measuring Accuracy Relative Humidity 20 Percent rel Humidity 5 Percent Operating Conditions 50 Degree Celsius, 90 Percent Rel. Humidity Storage Conditions 60 Degree Celsius Data Storage 5,000 Data Sets (Micro SD Card) Display 2.8", 320 x 240 pixels Display Type Backlight Color LCD Power Supply Charger Rechargeable Battery 1200-mAh, 7.4V ,240 VAC, 60 Hz Battery Life About 4 Hours In Continuous Operation Battery Recharge Time About 2 Hours with AC Adapter Dimensions 240 x 75 x 57 mm