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UEi Test Instruments™ - DTH35 UEI Digital Psychrometer

Item: DTH35

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About This Product

Product Info


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.

  • Large-digit back-lit display
  • Designed for in-duct measurement (4” x 3/8” probe dimensions)
  • Magnetic mount for hands-free use
  • Probe cover functions as an extension for hard to reach areas
F u n c t i o n s
  • Measures temperature and relative humidity
  • Calculates Wet Bulb, Dew Point, Enthalpy
  • Min / Max and Data Hold
S p e c i f i c a t i o n s
  • Temperature Range: -4 to 122°F (-20 to 50°C)
  • RH% Range: 0 to 99.9% RH%
  • Wet Bulb: 5 to 121.8°F (-15 to 49.9°C)
  • Dew Point: -4 to 121.8°F (-20 to 49.9°C)
  • Enthalpy 0 to 125 BTU/Lb (0 to 292 KJ/KG)
  • Temperature ±1.0°F(±0.6°C)
  • RH% ±3% at 77°F (25°C), 10~90% RH
  • Response Time 60 seconds typical for stable reading
Warning: this product contains a chemical known to the State of California to cause cancer.


Weight0.2 Pounds (lbs)
Width1.7 Inches (In)
Height9.5 Inches (In)
Country of OriginCHN
Length0.74 Inches (In)
AccuracyTair: ±1˚F (0.6˚C) 0˚ to 50˚C; ±2˚F (1.2˚C) all others.
Auto Power OffYes
ColorBlack, Yellow
Degree Divisions0.1
Dew Point Range-4.0˚ to 121.8˚F, -20°C to 49.9°C
Digital ReadoutYes
Display OptionsAir velocity, Relative humidity, Temperature, Air volume, Wet bulb, Dew point
Humidity Accuracy0.1% to 99.9%
Includes(2) CR2032 batteries and manual
Includes CaseNo
Laser PointerNo
Memory1 position
Memory ReviewYes
Memory Storage1 position
NSF CertifiedNo
Prop 65Yes
Relative Humidity AccuracyRH: ±3% (10% to 90% @25˚C) ±5% all others
Relative Humidity Range0.1% to 99.9%
Relative Humidity Resolution0.001
ResolutionTair: 0.1˚F
Temperature AccuracyTair: ±1˚F (0.6˚C) 0˚ to 50˚C; ±2˚F (1.2˚C) all others
Temperature Range-4°F to 122°F (-20°C to 50°C)
Warranty OfferedYes
Wet Bulb Temperature Range5°F to 121.8°F (-15°C to 49.8°C)


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