The Delmhorst Moisture Transmitters measure moisture in wood or other hygroscopic materials in conjunction with any Delmhorst electrode and generate either a current (MTX-C) or voltage output (MTX-V). The transmitters do not have a display, they use a 4-wire transmission method. DC voltage powers the unit using a separate wire from the voltage or current output wire.

The transmitters are ideally suited for applications requiring continuous monitoring of moisture in hygroscopic materials and interfacing the sensor to a data logger or a computer. The transmitters are housed in an ABS wall-mounted case for easy mounting near the sensor or in a control room.

Contact our customer service team to determine if the MTX can be calibrated to your specific wood species or other product.

Where to Buy

Product Features

  • Moisture range - 6% - 60% wood (Douglas Fir)
  • One input
  • D.C. current 4 to 20mA or Voltage 1-5 VDC, or 0-2VDC
  • Power supply with D.C. voltage between 15 - 30 volts
  • Minimum supply current of 500mA
  • Operating temperature range of 32F - 158F / 0C - 70C
  • Dimensions - 3.25" X 3.25" X 1.25" (Mounting base 4.25" X 3.295")
  • Terminals - 2.5 mm (Center Positive) power jack for Power Input, Terminal Strip, and UHF connector for Moisture Input

The MTX Package includes: MTX, 15v power adapter(US: 219ADA-0013, EU: 219ADA-0023), output plug (216CAB-0023) (Price: $390.00)

MTX Accessories:

MTX 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:



The 2-E/H is a compact electrode great for long-term monitoring of wood, drywall, and paper cores. This electrode connects directly to the MTX and comes equipped standard with 5/16” pins and a 10’ cable.

(Price: $85.00)



The 315CAB-0020, when used with optional contact pins, is a great solution for long-term monitoring of wood. This cable connects directly to the MTX using the terminal connection on the MTX.

With pins that are insulated except at the tip, you can obtain core readings which provide a true indication of moisture content at a known depth.

*The 315CAB-0020 is available in 10', 15', 20', 25', 30', 50', 75', and 100' lengths. Please specify required length based on your application.

**Pins show are part # 309PIN-0042, and are available with 1/2" penetration for up to 5/4" stock, 1" penetration for up to 10/4" stock, and 1-3/4" penetration for up to 5" stock.

Order as:

315CAB-0020/025: (Price $65.00)

315CAB-0020/050: (Price $95.00)

315CAB-0020/075: (Price $125.00)

315CAB-0020/100: (Price $155.00)


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?

Checking Moisture Meter Accuracy

How can you be sure your moisture meter is taking accurate readings? Download our complimentary guide "Checking Moisture Meter Accuracy" to keep your meter in tiptop condition.


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