Retaining all the features of the 6100 model, the ETI 6102 also has a dual-reading backlit LCD display with %rh top reading and bottom reading displaying temperature or dew as well as an extended temperature range of -20 to 70°C. This hygrometer takes three AAA alkaline batteries with a minimum battery life expectancy of 10000 hours and an automatic power off function, shutting down the unit after 10 minutes of inactivity so that your battery life is preserved. Features 3×1.5V AAA Batteries 12mm Backlit LCD Display 130g Weight /- 1°C Temperature Accuracy (0.4°C over 10-40° Range) -20 to 70°C Temperature Range /-2% Humidity Accuracy up to 100%rh Humidity Range
