Traceable unit displays humidity to 0.01% and provides a response time of under 10 seconds with a resolution of 0.01% RH, 0.01°F/°C and 0.01° dew point °F/°C. It samples one-and-a-half times per second. "Fuzzy logic" algorithm pinpoints the exact answer almost instantly. Direct-reading instrument has an accuracy of ±1.5% RH and ±0.2°C. Results are reported in both °F and °C from -40.00 to 220.0°F (-40.00 to 104.0°C) temperature and from -40.00 to 140.0°F (-40.00 to 60.00°C) dew point. Certified Traceable® to NIST. Fulfills federal CLIA requirements and is ideal for hoods, clean rooms, food storage, process control, incubators, desiccators, drug manufacturing, environmental chambers, corrosion analysis, and inside/outside air monitoring. Four-digit LCD display can be read from 10 feet. Rugged handheld unit is designed for years of service. Memory recalls both highest and lowest readings in dew point, temperature and humidity at any time. High and low alarms can be programmed in dew point, temperature and humidity. When an out-of-range condition is sensed, an alarm sounds and the display flashes. Computer output through the accessory Data Cable permits data to be captured, transferred, stored and printed. Measures 5-1/2 x 3-1/2 x 1-1/4 inches and weighs 12 ounces. Probe length is 7 inches. Cable length is 54 inches. Supplied with 9-volt battery for 1-year intermittent usage or 100 continuous hours. AC adaptor (not supplied) is available. Complete with Traceable® Certificate and ABS carrying case.