Menu
  • 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
    • Radioactive Material Licenses
    • Mobile App Privacy Policy
    • Sales Tax Business Licences
    • Terms & Conditions
    • Export Information
    • Ethics Policies
  • Careers
  • Contact Us
    • Ludlum Headquarters
    • U.S. Contacts
    • International Contacts
    • Sales Contact Form
    • Feedback Form
Ludlum Measurements Logo
(800) 622-0828 (US, CA)
(325) 235-5494
(325) 235-4672



Field Service Support

To search products by model number, enter "m..."
(Ex: Enter "m3" to search for Model 3.)

  • 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
    • Radioactive Material Licenses
    • Mobile App Privacy Policy
    • Sales Tax Business Licences
    • Terms & Conditions
    • Export Information
    • Ethics Policies
  • Careers
  • Contact Us
    • Ludlum Headquarters
    • U.S. Contacts
    • International Contacts
    • Sales Contact Form
    • Feedback Form
Health Physics Medical Physics Metal Recycling Monitoring SystemsEmergency Response

Health Physics

Portable Survey Meters

  • Friskers
  • General Purpose - Digital
  • General Purpose - Analog
  • Computerized
  • Data Loggers
  • Specialized Meters
  • Geiger Counters
  • Intrinsically Safe
  • Ion Chambers
  • Isotope Identifiers
  • microR / microSv Meters
  • Extended Reach microR / microSv Meters
  • Neutron Meters
  • Pocket-Size Meters
  • Scaler-Ratemeters
  • Stretch Scopes

Personal Radiation Meters

No subcategories

Benchtop Meters

No subcategories

Scalers / Counters

No subcategories

Pulsers

No subcategories

Detectors

  • Alpha
  • Alpha-Beta
  • Alpha-Beta-Gamma
  • Beta
  • Gamma GM
  • Gamma Scintillator
  • Low-Energy Gamma Scintillator
  • Neutron
  • Waterproof Detectors
  • Pipe Detectors
  • Sample Counter Heads
  • Sample Holders

Monitoring Systems

  • Area Monitor Controllers
  • Area Monitoring Systems
  • Portal Monitors
  • Monitoring Systems
  • Contamination Monitors
  • Article Monitors
  • Air Monitors
  • Hand & Foot Monitors
  • Body Monitors
  • Vehicle Monitors
  • Scrap Monitoring Systems
  • Laundry Monitors

Ground/Floor Surveying

No subcategories

Sample Counting

  • Sample Counting Systems
  • Scalers / Counters
  • Sample Counter Heads
  • Protean Instrument Alpha-Beta Counting Systems

Tritium Monitoring

No subcategories

NORM Kits

No subcategories

Dosimetry

  • Dosimeters
  • Dosimeter Accessories

Accessories

  • Detector Accessories
  • Handles & Straps
  • Audio
  • Cables, Connectors & Signal Convertors
  • Check Sources
  • Instrument Cases

Need Help?

Unsure about which instrument is best for your application?

Find your region's Ludlum representative or dealer.

  • US Contacts
  • International Contacts

OR

Contact Ludlum Sales:

(800) 622-0828 (USA Toll Free)

(325) 235-5494

Newsletter

Subscribe to our customer newsletter! Stay informed about Ludlum products and services, and get helpful support tips.

Please enable the javascript to submit this form

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Model HWM-300

Model HWM-300

Free Release Monitor

Features

  • Reduced Dead Zones: Active Scintillation Coverage Area / "Inner Chamber Area" Coverage
  • Intuitive Operating Software That Is Easy to Use
  • Export of Measurement and Parameter Data in XML Format via USB
  • Energy Filter Settings to Optimize Discrimination of Background Radiation
  • Integrated Mini-UPS for Several Measurements During Mains Power Outage
  • Ergonomically Positioned Touch Operated Display
  • Access to Historical Measurement Data via Integrated Database
  • Access to LMG Test Tool Software for Detector Analysis

Free Release Monitor for Gamma-Detection in Small to Medium Sized Items

The HWM-300 is a compact clearance monitor for the release of materials and goods of up to 150 kg (330 lb). The standard unit is equipped with the following features:

  • 6 gamma plastic detectors for a complete 4π coverage
  • 25 mm (1 in.) lead shielding
  • Built-in weigh scale for up to 150 kg (330 lb)
  • Powder-coated steel frame with easy to clean stainless steel lining inside and outside
  • Integrated 12 in. touch-screen display
  • Fully automated measuring process with user guidance
  • Nuclide composition suggestion from detector-pulse-analysis
  • Network capability for remote monitoring and supervision
  • Integrated Mini-UPS

The HWM-300 provides fast and reliable detection of gamma radiation. Equipped with the latest measuring electronics and a built-in maintenance module, it allows optimization of the system to ensure consistent peak performance.

 

  • Specifications
  • Options
  • Documents
  • Specifications
  • Options
  • Documents

Specifications

Standards The monitor is compliant with the following standards: CE, CSA / UL or EMC, ISO11929
Detectors 6x gamma plastic detectors
Detector Volume: > 117 L (4.13 ft3)
Direct connection of each detector to the PC via USB
User Software Intuitive operator software with touch-screen display, fully automated measurement process with user guidance, indications of results and measurement material position on the display, web based for RPO remote access
Electronics Integrated illumination in the chamber, status-LED, interlock-relays and interface to external units
Housing Steel frame with stainless steel lining
Front door with special hinges and manual lock
Ext. Dimensions
(H x W x D)
1,813 w/o lifting eye x 995 x 977 mm (71.3 x 39.2 x 38.5 in.), incl. handle
Chamber Volume
(H x W x D)
600 x 600 x 860 mm (23.6 x 23.6 x 33.9 in.)
340 L (12 ft3)
Shielding Standard: 25 mm (1 in.) lead
Option: 50 mm (2 in.) lead
Sensors 2 door sensors with interlock
Integrated weigh scale
Weight Standard: approx. 2,550 kg (5,620 lb)
With option 50 mm lead: 4,500 kg (9,920 lb)
Power Supply 24 V via ext. 110 - 240 V power adapter
Uninterruptable power supply (UPS) to bridge loss of mains electrical power

Options

Ludlum offers a range of additional options to enhance the capabilities of the monitor and are able to tailor the HWM-300 to your specific needs.

  • Second door on the exit-side
  • Additional lead shielding (50 mm [2 in.] instead of 25 mm [1 in.])
  • Integration of a camera in the chamber

Documents

  • Data Sheet
  • Ludlum Article Monitor Comparison Table

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

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

All Products

Service Center

Training

About Us

Careers

Ludlum Family

Directions to Facilities

U.S. Contacts

International Contacts

Privacy Policy

Follow Us

LinkedIn

Facebook

YouTube

© 2025 Ludlum Measurements, Inc.