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Army MOS · Logistics

94H Test, Measurement, and Diagnostic Equipment (TMDE) Maintenance Support Specialist

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

TMDE Maintenance Support Specialists calibrate and repair general-purpose and selected special-purpose test, measurement, and diagnostic equipment, RADIAC equipment, calibration standards, and accessories. They operate calibration equipment, perform preventive maintenance on assigned vehicles and equipment, and install, operate, and maintain power generators.

Minimum ASVAB: EL 107

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: smartbook-611-21-ch10c-fy2025 (source date 2025-12). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Core Skills

  • Radiation detection equipment calibration and repair
  • Calibration standards operation and repair
  • Power generator installation and preventive maintenance

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Calibration Technologists and Technicians

Calibrating and repairing general-purpose and selected special-purpose TMDE, calibration standards, and accessories directly overlaps civilian calibration work.

How to prepare: Prepare a sample calibration report showing a device's measurements against a known standard and the resulting calibration decision.

What the civilian work involves
  • Analyze test data to identify defects or determine calibration requirements.
  • Calibrate devices by comparing measurements of pressure, temperature, humidity, or other environmental conditions to known standards.
  • Conduct calibration tests to determine performance or reliability of mechanical, structural, or electromechanical equipment.
Civilian tools and software (examples)
  • Microsoft Excel

Electrical and Electronic Engineering Technologists and Technicians

Operating test equipment and repairing TMDE and radiation detection equipment transfers to electronics testing and repair.

How to prepare: Build a bench-test work sample documenting an equipment fault, the test setup used to investigate it, and verification after repair.

What the civilian work involves
  • Modify, maintain, or repair electronics equipment or systems to ensure proper functioning.
  • Replace defective components or parts, using hand tools and precision instruments.
  • Set up and operate specialized or standard test equipment to diagnose, test, or analyze the performance of electronic components, assemblies, or systems.
Civilian tools and software (examples)
  • Microsoft Excel

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Getting Started

  • Associate Electronics Technician (CETa)

    Support an early-career electronics testing and repair path with an electronics credential designed for technicians with less than two years of experience or training.

    For: Electrical and Electronic Engineering Technologists and Technicians

Notes & Sources

Evidence for this guidance (4 documents)
  1. Army COOL MOC feed: 94H Test, Measurement, and Diagnostic Equipment (TMDE) Maintenance Support Specialist

    [1] data/authority/army-codes.json entry 94H (OSD COOL feed, fetched 2026-07-25); DB rank enlisted, authority codeType enlisted

    Supports: Radiation detection equipment calibration and repair, Calibration standards operation and repair, Power generator installation and preventive maintenance, Calibration Technologists and Technicians (O*NET 17-3028.00), Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00)

  2. O*NET: Calibration Technologists and Technicians

    [2] O*NET 30.3 occupational data

    Supports: Calibration Technologists and Technicians (O*NET 17-3028.00)

  3. O*NET: Electrical and Electronic Engineering Technologists and Technicians

    [3] O*NET 30.3 occupational data

    Supports: Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00)

  4. COOL credential mapping: Associate Electronics Technician (CETa)

    [4] 94H cached COOL credential feed

    Supports: Associate Electronics Technician (CETa)

    [5]ETA International: Associate Certified Electronics Technician · CETa description and CETa Exam Info; retrieved 2026-09-23

    Supports: Associate Electronics Technician (CETa)

Defense contractor jobs for 94H

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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