Temperature and Humidity logger with internal sensors -Temperature Range: -35 ~ 80°C with ±0.3°C accuracy -Humidity Range: 0 ~ 100% with ±3% accuracy -Dew Point calculated and graphed in software -LCD real-time display with battery and logger status -Green and Red LED’s for Log, alarm & battery status -Start on button press, time delayed or immediate -Offset calibration facility via software -32,000 record memory (64,000 readings) -Size: 120 x 37 x 23mm -3.6V ½ AA Lithium battery (approx. 3 years @ 1min) -Includes DGraph software and battery