Displays current RH & temperature readings, and automatically logs:
Air Temperature, RH, Dew Point, Wet Bulb

Records up to 32,000 data points that can be downloaded by plugging the pen directly into a USB port, with no cradle or cable necessary. Datalogging can be programed to begin immediately, at a predetermined time, activated by the unit’s push button, or to continually roll over after a set number of data points. Green and red led lights indicate datalogging and alarms. Comes with software, ½ AA battery, tripod screw and a wrist strap. N.I.S.T. traceable certificate of compliance available.

Dimensions: 1″ × 5-1/4″ (25 x 133 mm)
Weight: 1.2 oz (34 g)