HT-4000 Thermo-Hygrometer

The HT-4000 is a stand-alone thermo-hygrometer that has the same fast acclimating RH/T sensor found in our popular Navigator Pro and TotalCheck 3-in-1 moisture meters. For contractors who prefer having separate meters to one combination meter, the HT-4000 is the perfect solution.

 

Where to Buy

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Product Features

  • Bright, clear digital display.
  • Relative Humidity Range: 0% - 100%, 
  • 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.

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

HT-4000 Thermo-Hygrometer Accessories:

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CS-3

Plastic sleeve required when performing ASTM F-2170 tests on concrete. Used with the RH/T-S3 attachment included with Total Check and HT-4000F. Order in packs of 20 as CS-2/20 or CS-3/20.
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Relative Humidity Test Kit

The relative humidity test kit is great for testing the accuracy of our detachable RH/T-S1 and RH/T-S3 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 asRH/TK/33 and RH/TK/75 respectively).
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RH/T-S1

Detachable relative humidity/temperature sensor that is included with Navigator Pro and HT-4000. Can be used to obtain ambient RH/T readings. Order individually or in packs of 5 as RH/T-S1/5.
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RH/T-C1

Extension cable that connects to the RH/T-S1 and RH/T-S3, allowing you to easily view your meter’s screen while performing tests in hard to reach areas.

HT-4000 Thermo-Hygrometer Electrodes:

Delmhorst offers a wide assortment of electrodes known throughout the industry for their durability. All Delmhorst electrodes fit any Delmhorst moisture meter. Below are electrodes that are typically used for this model:

Manuals & Training

Owner's Manual

Product Manual

Download Manual (pdf)

Whitepaper

Relative Humidity Sensor Behavior and Care

Download Whitepaper (pdf)

Online Learning

Interactive Training Course

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Download the eBook, What is the key to Accuracy?

Moisture Meters 101 Guide

Finding the right kind of moisture detection equipment to meet your needs is a huge part of being able to anticipate how moisture conditions can affect your work.

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Download the Complete Guide to Measuring Moisture in Restoration

Measuring Moisture in Restoration

Knowing the exact location and extent of moisture in a building is essential knowledge for restoration efforts. The full applications of moisture meters in restoration projects are described in this eGuide.

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For more information, view our complete list of 
Moisture Meter Resources