TechCheck PLUS

Given the challenging conditions of building inspection, installation, and drying jobs, it pays to have an easy-to-use moisture meter that you can depend on. The easy-to-use 2-in-1 TechCheck PLUS was designed with simplicity in mind and helps to make even the most demanding job simple. The newly updated TechCheck PLUS has all the great features you've come to expect, along with some new ones.

Where to Buy

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Product Features

  • Bright, clear digital display.
  • Pin mode:
    • 0.1% - 6% drywall scale, Delmhorst Exclusive.
    • 6%-60% MC wood scale.
    • Integral Contact pins mounted on top of meter provide 5/16” penetration.
    • Built-in connector accepts any Delmhorst electrode.
  • Scan Mode: (0-300 numerical reference scale).
  • Spanish language option.
  • Built-in back-light makes reading in dark places a cinch.
  • Auto-shutoff timer saves battery life.
  • Audible, adjustable alarm alerts you when your pre-selected MC has been reached.    
  • 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.

TechCheck PLUS Package Variations:

TechCheck PLUS: Includes meter, carrying case and additional contact pins. Order as TECHCHECK+W/CS.

TechCheck PLUS Insulation package: Includes meter, 21-E electrode, extra contact pins for the meter, and carrying case. Order as TECHCHECK+/PKG.

TechCheck PLUS Accessories:



An alternate to the 496 pin for the 26-ES, the 1849 is a 1 ½” insulated pin with 1/2" penetration. The 1849 is suitable for wood up to 2" thick.


Uninsulated pin and retainer with 5/16" penetration. Standard on all meters with built-in pins and the 2-E and 4-E electrodes. Used on wood up to 6/4 (1 ½”), concrete and gypsum.


Retainer used to hold contact pins in place. Used with #608 and #608/001. Available in packs of 4 as 305RET-0021/4.


496 contact pins are insulated except at the tips, and measure 2" overall with 1 1/8" penetration. Standard on the 26-ES, and can be used to check wood up to 5" thick.


The 608 insulated contact pins measure 4" overall, and penetrate 3 1/4". Standard on 21-E and 18-ES electrodes, and can be used on roofing, insulation, timber, poles, and EIFS. Also available in 7” length with 6” penetration as 608/001.


Retainer used to hold contact pins in place. Used with #496, #1849, and #A-111 pins. Available in packs of 4 as 632/4.


Another alternative to the 496, the A-111 is an uninsulated contact pin measures 1 7/16” and has 1/2" penetration. The A-111 is compatible with both the 26-ES and the 22-E, and its tapered point makes it easier to penetrate into hard surfaces. Can be used on wood up to 2" thick.


Makes pilot holes in stucco to reduce pin damage.


Moisture content standards are great for verifying that your Delmhorst moisture meter is in calibration. The MCS-1 can be used on any meter with a wood scale. With two electrical resistance values (12% and 22%) to test your meter against, you can be sure that your readings will stand up to the strictest standards of accuracy. The MCS-1 is also available with a letter of certification traceable to NIST.

TechCheck PLUS 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:



Fitted with the same 5/16" penetration pins that are mounted on our pin type meters. This electrode is great for a variety of different applications:

  • Home inspector: Use on wood joists and drywall.
  • Paper producer: Use on curved surfaces such as cardboard and paper tubes.
  • Woodworker: Use on timber, poles, and veneer.

2-E is also available as the 2- ET with a tapped handle for hard to reach areas. Can also be fitted with A-103 uninsulated pins with 1 3/32” length and 11/16” penetration.



The 496 contact pins that come with the 26-ES penetrate 1 1/8” and have insulated shanks so that only the tips are exposed. The pins make contact only at their uncoated tips and provide much more accurate readings of moisture content at various levels of penetration. This feature is useful for a variety of different applications:


  • Flooring installers: Penetrate through flooring to plywood sub-floor, or concrete.
  • Dry kiln operators: Identify moisture gradients which helps to identify the drying pattern.
  • Furniture manufacturers and craftsmen: Easily check high density hardwood that short pins are unable to penetrate.

Also available as the 26-ED, which includes gauge to measure pin penetration depth.



The 608 pins that come with the 21-E are insulated, except at the tips, and can reach a maximum penetration of 3-1/4".

Great for use on roofs, insulation, or EIFS.

21-E is also available as the 21-E/001 with 6" penetration, or as the 21-ET with a tapped handle for hard to reach areas.



Comes with A-111 uninsulated contact pins for 1 1/2" penetration. For use on plaster, masonry and wood. Will also accept 496, insulated pins; 1 1/16” penetration.

22-E is also available as the 22-ET with a tapped handle for hard to reach areas.



Features two 5'' long blades, bent to a 35° angle, and coated in Teflon except for the tips. Great for checking behind trim and baseboard molding.


Makes moisture testing in hard to reach places a breeze. Simply attach any length metal “probe” to the alligator clips on the end of the 2-E/Split and test behind toe kicks, through drywall, or any other area where our standard length contacts pins aren’t long enough. 

Manuals & Training

Owner's Manual

Product Manual

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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.

Download the eBook, What is the key to Accuracy?

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.

Download the eBook, What is the key to Accuracy?

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