Extech Hygro-Thermometer, Datalogger, Extech Instruments (CAT#: STEM-AIAE-0052-LKN)

For Relative Humidity, Temperature, Dew Point, and Wet Bulb measurement. Datalogger date/time stamps and stores readings on an SD card in Excel format for easy transfer to a PC. Stores 99 readings manually and 20M readings via 2G SD card. Supplied with 6 x AA batteries, SD card, carrying case and Humidity/Temperature probe.

Humidity measuring range: 5-95%
Temperature measuring range: 0-50 °C
Size: 7.2 in. (182 mm) × 2.9 in. (73 mm) × 1.9 in. (74.5 mm)
Weight: 23.1 oz (655 g)
Battery power: 6 AA

Adjustable data sampling rate: 1 to 3600 seconds.
Type K/J Thermocouple input for high temperature measurements.
Large backlit dual LCD display.
Record/Recall MIN, MAX readings.
Data Hold plus Auto power off with disable function.
Built-in PC interface.