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Thermo-hygrometer for the installation of floors Material Testing

Thermo-hygrometer for the installation of floors

Product Code:HT-4000

Need more Info? (514) 354-2511 - 1-800-463-4363

Delmhorst is proud to introduce the HT-4000, a stand-alone thermo-hygrometer for flooring installers and restoration contractors alike. The HT-4000’s advanced RH/T sensor acclimates quickly to ambient temperature and humidity, using the same technology as our popular Total CheckTM and Navigator ProTM 3-in-1 moisture meters. For contractors who prefer having separate meters to one combination meter, the HT-4000 is the perfect solution. The meter’s sensor is also detachable, making the HT-4000 ideal for testing a concrete slab according to the ASTM F2170 standard

  • RH Sensor – conforms to ASTM F-2170 standard for in-situ concrete testing
  • Measures Relative Humidity (RH) and temperature
  • Calculates Grain Per Pound (GPP) / Grains Per Kilogram (GPK)
  • Calculates vapor pressure in terms of Pounds per Square Inch (PSI) / Kilopascals (KPA)
  • Back lit display – makes it easy to read in dark areas
  • HOLD function – freezes readings on screen for later viewing

Applications include: Flooring Installation, Restoration, Home Inspection, and General Contracting

Outstanding Features & Benefits

  • detachable RH sensor
  • conforms to ASTM F-2170-02 standard
  • can connect to optional cable for easy viewing while inserted in concrete

  • large, legible LCD screen
  • streamlined interface allows for out-of-thebox ease-of-use
  • bright backlit display enhances low light working conditions

  • keypad designed for easy, one-finger control
  • hold feature captures measurements taken in hard to reach areas
  • ergonomic handle that is unique in the industry
  • rugged design that will help to ensure years of reliable use

RH/T-S1: Replacement relative humidity sensor, great for checking in multiple locations on a concrete slab.

CS-2, CS-3: Plastic sleeves come in 2” (CS-2) and 3” lengths (CS-3), and are scored for easy depth adjustment.

The HT-4000 is great for testing the RH of concrete using the ASTM F-2170-02 standard, or for monitoring the drying process
Technical Specifications:
  • RH range 0 to 100%
  • Temperature range -40°F to 255°F (-40°C to 124°C)
  • Dew Point range -40°F to 176°F (-40°C to 80°C)
  • GPP range 0.1 to 3820 GPP (Grains Per Pound)
  • GPK range 0.01 to 545 GPK (Grains Per Kilogram)
  • Vapor Pressure range 0 to 7 PSI (Pounds Per Square Inch)
  • Vapor Pressure range 0 to 47 KPA (Kilopascals)


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