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Temperature / RH
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The same superior quality found in our moisture meters is available in our thermo-hygrometers and thermometers. They complement our moisture meters perfectly, and give you a full picture of ambient moisture conditions.

HT-4000 Thermo-Hygrometer



Overview

Delmhorst is proud to introduce the HT-4000, a stand-alone thermo-hygrometer for flooring installers and restoration contractors alike. The HT-4000 has the same fast acclimating RH/T sensor found in our popular TotalCheck and Navigator Pro 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.

Features:

  • Bright, clear digital display.
  • Relative Humidity Range: 0% - 100%, sensor can be used for in-situ concrete testing following the ASTM F2170 standard
  • Temperature Range: -40°F - 255°F (-40°C - 124°C).
  • Dew Point Range: -40°F - 176°F (-40°C - 80°C).
  • GPP Range: 0.1 - 3820 GPP (Grains Per Pound).
  • GPK Range: 0.01 - 545 GPK (Grains Per Kilogram).
  • Vapor Pressure Range: 0 - 7 PSI (Pounds Per Square Inch).
  • Vapor Pressure Range: 0 - 47 KPA (Kilopascals).
  • Built-in back-light makes reading in dark places a cinch.
  • Auto shut-off timer saves battery life.
  • Reading HOLD Feature.
  • Size: 8 ½” x 3 3/8” x 1 ¾”.
  • Weight: 11 oz.
  • Rugged construction ensures years of reliable use.
  • Sturdy plastic carrying case.
  • 9V battery.
  • 1-year warranty.

HT-4000 Package Variations:

HT-4000 Flooring Package: Includes meter, carrying case, (2) RH/T-S2 sensors, (1) RH/T-C1 cable for easy reading while sensor is in concrete, and (5) CS-3 concrete sleeves for testing in multiple sites. Order as HT-4000F/PKG.

HT-4000: Includes meter, (1) RH/T-S1 sensor, and carrying case. Order as HT-4000W/CS.

 

Electrodes
No electrodes available
Accessories

CS-2

Plastic sleeve required when performing ASTM F-2170 tests on concrete. Used with the RH/T-S1 attachment included with Navigator Pro, Total Check, and HT-4000. Also available in 3” length as CS-3. Order in packs of 20 as CS-2/20 or CS-3/20.

Relative Humidity Test Kit

The relative humidity test kit is great for testing the accuracy of our detachable RH/T-S1 relative humidity sensors. The air inside the test kit bottle is controlled by a salt solution, which keeps the relative humidity constant. The kit is available with either 33% or 75% relative humidity (Order as RH/TK/33 and RH/TK/75 respectively).

RH/T-C1

Extension cable that connects to the RH/T-S1, allowing you to easily view your meter’s screen while performing ASTM F-2170 tests on concrete.

RH/T-S1

Detachable relative humidity/temperature sensor that is included with Navigator Pro, Total Check, and HT-4000. Can be used to obtain ambient RH/T readings, or for performing ASTM F-2170 tests on concrete. Order individually or in packs of 5 as RH/T-S1/5.

Owner's Manual
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WHITE PAPER - RELATIVE HUMIDITY SENSOR BEHAVIOR & CARE
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