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  • Home
  • Products
    • All Products
    • Health Physics
    • Medical Physics
    • Metal Recycling
    • Monitoring Systems
    • Emergency Response
    • How To Order
    • Connector Types
  • Support
    • Service Center
    • Training
    • Product Videos
    • Webinars
    • Software & Firmware Downloads
    • Rad Pro Calculator
    • Warranty Plans
    • Radiation Resources
    • Field Service Support
  • Documents
    • Product Manuals
    • Detector Reference Chart
    • Response Curves
    • Test Reports
    • Newsletter Archive
    • Technical Articles
    • End User Statement Form
    • Price List
  • Company
    • About Us
    • Ludlum Family of Companies
    • Directions to Facilities
    • Exhibition Schedule
    • ISO 9001 Certificate
    • ISO/IEC 17025 Accredited
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    • Ludlum Headquarters
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Radiation Detection
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Portal Monitors
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Model 4525 Systems
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Ludlum Measurements, Inc. designs and manufactures radiation detection instruments and technologies. Founded in 1962, we offer a large array of radiation detection instrumentation, developed to help monitor the safety of personnel and the environment. Our instruments are used in applications such as routine personnel and material monitoring, border security, and emergency response situations. We are committed to making the world a safer place to live and work by providing affordable, dependable, and durable equipment.

 

Ludlum Measurements, Inc. designs and manufactures radiation detection instruments and technologies. Founded in 1962, we offer a large array of radiation detection instrumentation, developed to help monitor the safety of personnel and the environment. Our instruments are used in applications such as routine personnel and material monitoring, border security, and emergency response situations. We are committed to making the world a safer place to live and work by providing affordable, dependable, and durable equipment.

About Our Company

 


Featured Products

Model 3277/1

Model 9-7S

Ion Chamber Stretch Pole with Ratemeter

Model 3007 Series

Model 3007 Series

Neutron Dose Survey Meter with Optional Internal Gamma Detector

Model 26S

Model 26S

Integrated Scintillator Frisker

Models 194E and 194

Model 194

Dose Equivalent Rate Meter

Model 3003

Model 3003

Multi-Detector Digital Survey Meter and Single Channel Analyzer

Model 3014

Model 3014

Dual-Detector Digital Survey Meter and Single Channel Analyzer

Model 3078

Model 3078

Digital Stretch Scope for Gamma Survey

Model 3101

Model 3101

Portable Tritium in Air Monitor

Service Department

Ludlum Measurements Service Department offers full service repair and calibration. We not only repair and calibrate our own instruments but most other manufacturers' instruments as well. Repair sites include the main LMI facility in Sweetwater, Texas and Protean Instrument in Knoxville, Tennessee.

Learn More

  • Service Department - LMI (Sweetwater, TX)
  • Service Department - Protean (Knoxville, TN)
  • Fixed Contamination Instruments

Training Courses

Ludlum Measurements offers an intensive two day training course on the calibration of Ludlum instruments. The training course is held at our main facility as well as at Protean Instrument in Knoxville, Tennessee. An instrument repair course is also offered at the Protean Instrument location.

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  • Training Courses
  • Training Course Schedule
  • Training FAQs

Product Videos

Ludlum Measurements has created several overview videos of our most popular products. The full list of videos can be found on our YouTube channel. The individual videos can also be found on the corresponding product pages on our website.

Learn More

  • Product Videos
  • LMI YouTube Channel

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Upcoming Exhibitions

12 Jun
HAZMAT Conference 2025
Jun 12, 2025 - Jun 15, 2025
Baltimore, MD

Upcoming Training

Jun
10
Calibration Training
Ludlum Measurements (Sweetwater, TX)
Class Full
Jul
08
Calibration Training
Protean Instrument (Knoxville, TN)
Class Full
Sep
09
Calibration Training
Protean Instrument (Knoxville, TN)
Spots Available: 3
Oct
14
Calibration Training
Ludlum Measurements (Sweetwater, TX)
Spots Available: 4

Ludlum Measurements, Inc.
501 Oak Street
Sweetwater, TX 79556
USA

(800) 622-0828 (US & Canada)
(325) 235-5494
(325) 235-4672

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