The DTH35 digital psychrometer measures temperature, relative humidity, and calculates wet bulb, dew point, and enthalpy of moist air (air with humidity). The housing design is useful for in-duct measurement, as well as ambient or vent outlet applications. A large, easy to read display, and built in magnet improves ease of use.

UEi Test Instruments™ Digital Psychrometer, +/-3% RH, +/-1 deg F Temperature Accuracy, -4 to 122 deg F, 0 - 99.9% Humidity, -4 to 121.8 deg F

• Large-digit backlit display
• Designed for in-duct measurement
• 4 x 3/8 in probe
• Magnetic-mount for hands-free use
• Probe cover functions as an extension for hard to reach areas
• Measures temperature and relative humidity percentage
• Calculates wet bulb, dew point, enthalpy
• Minimum/maximum/data hold
• 5 - 121.8 deg F wet bulb
• 0 - 125 Btu/lb enthalpy
• +/- 3% at 77 deg F, 10 - 90% RH accuracy
• Response time 60 sec typical for stable reading
• Press any key to activate the blue backlight for 10 sec
• 20 min auto power off
• Low voltage indicator
• 2 points RH calibration (32.8% and 75.3%)
• Greater than 110 hr battery life without backlight
• (2) CR2032 batteries and manual