MT667 is a digital Thermo-Hygrometer that is microprocessor controlled with fast response and high accuracy with Dew point, Wet bulb and Temperature measurements. The Wet Bulb mode is effectively a Digital Sling Psychrometer. It is an ideal instrument for scores of practical applications for Laboratory, Industrial, Engineer and Professional use. This offers a wide variety of applications ranging from HVAC to laboratories, and is ideal in other industries such as computer rooms, hospitals, tobacco industry, factories and offices and general use. Accessories: Carrying Case Instruction manual Features : Microprocessor controlled Humidity meter 0% – 100% Humidity Temperature Meter -30°C to 100°C Wet Bulb Temperature 0°C to 80°C Dew Point Temperature -30°C to 100° Resolution 0.01% RH and 0.01°C Fast response High accuracy Data Hold Min / Max °C or °F Dual display and backlight