Hobo Temperature Logger

You won???t find a better energy management tool than the cordless Hobo. It records a constant stream of temperature and humidity readings in any room. Upload this data to any Mac or PC, and you???ll see exactly when and where cooling or heating is and isn???t needed. Use this invaluable (and often surprising!) information to fine-tune thermostat settings and wring every last drop of energy savings from your home. Variable sampling intervals, programmable start times and extended operation abilities adjust to any situation. Operating range is -4??F to 158??F; 0 to 95% relative humidity. Software, USB cable and CR2032 lithium battery included. Free software is downloadable. 2 2/5"H x 1 9/10"W x 4/5"D. USA.