General Tools LRTH185DL Calibratable Data Logging Temperature-Humidity Monitor With Jumbo Led Display

The #LRTH185DL is ideal for monitoring and logging the temperature and relative humidity (RH) of labs, computer rooms, clean rooms and other critical areas. Its huge 8.4 x 4.7 in. red LED display can be seen from a distance. Jumbo LED display with clock is designed to be wall-mounted and AC-powered, with battery backup Adjustable Hi Lo temperature and RH alarms 33% and 75% #HR33 and HR75 reference salts are available to calibrate RH measurement in the field Data hold Internal data logging memory USB jack Additional Information ManufacturerGeneral Tools IncludesPC data logging/interface software on CD #Z110VADPT110V AC adaptor Backup battery 1-year limited warranty Dimensions10.2 x 7 x 1.9 in. (260 x 178 x 47mm) Power source#Z110VADPT 110V AC adaptor (included), with "9V" backup battery (included) Sampling timeOnce per second Display size/type8.4 in. x 4.73 in. (214 x 120mm)/7-segment red LEDs Temperature measurement range/resolution-4° to 140°F (-20° to 60°C)/0.1° RH measurement range/resolution5 to 95%/0.1% Temperature measurement accuracy1.8°F (1°C) from 32° to 104°F (0° to 40°C); 3.6°F (2°C) elsewhere in range RH measurement accuracy2% from 35%RH to 80%RH; 2.5% from 10%RH to 35%RH and from 80%RH to 90%RH; 5% elsewhere in range RH response time< 4 seconds Internal data logging memory capacity500 pairs of temperature and RH readings