General Tools LTH8809DL Data Logging Temperature-Humidity Monitor

The #LTH8809DL temperature-humidity monitor/data logger is ideal for HVAC/R applications. Its big, bright red LED display can be seen from a distance. Large two-line red LED display shows relative humidity (RH) above temperature Also calculates and displays dew point temperature Designed to be wall- or desk-mounted and AC-powered, with battery backup Adjustable Hi and Lo temperature and humidity alarms °F/°C switch Includes data logging software and USB cable Large data log capacity 33% and 75% #HR33 and HR75 reference salts are available to calibrate RH measurement in the field Additional Information ManufacturerGeneral Tools IncludesPC data logging/interface software on CD USB cable #Z110VADPT 110V AC adaptor Backup batteries 1-year limited warranty Dimensions4.8 x 5.2 x 1.6 in. (120 x 130 x 42mm) Power source#Z110VADPT 110V AC adaptor (included), with four "AA" backup batteries (included) Display size2 x 2.6 in. (50.9 x 65.5mm) Temperature measurement range/resolution-4° to 158°F (-20° to 70°C)/0.1° RH measurement range/resolution5 to 95%/0.1%RH Temperature measurement accuracy1.2°F (0.6°C) RH measurement accuracy3% from 10 to 90%RH; 5% elsewhere in range Data logging capacity16,000 pairs of temperature and humidity readings