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Pocket-Size Meters

Ludlum Neutron Meters Comparison Table

Model 2401-EC
Pocket-Size Survey Meter
  • Gamma Survey
  • 3-Range Analog Meter
  • Internal Energy-Compensated GM Detector
  • Sensitivity (137Cs): 1050 cpm per mR/hr
  • Range:
    • 0 to 200 mR/hr
    • 0 to 210,000 cpm
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Model 2401-ECA
Pocket-Size Survey Meter with Alarm
  • Gamma Survey
  • 3-Range Analog Meter
  • Internal Energy-Compensated GM Detector
  • Sensitivity (137Cs): 1050 cpm per mR/hr
  • Range:
    • 0 to 200 mR/hr
    • 0 to 210,000 cpm
  • Alarm
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Model 2401-EC2A
Pocket-Size Survey Meter with Alarm
  • Gamma Survey
  • 3-Range Analog Meter
  • Internal Energy-Compensated GM Detector
  • Sensitivity (137Cs): 120 cpm per mR/hr
  • Range: 0 to 200 µSv/h (0 to 2 R/hr)
  • Alarm
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Model 2401-EC2
Pocket-Size Survey Meter
  • Integrated Meter with Energy-Compensated GM Detector
  • Simple to Use
  • Low Cost
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Model 2401-EW
End-Window GM Pocket-Size Survey Meter
  • Alpha-Beta-Gamma Survey
  • 3-Range Analog Meter
  • Internal End-Window GM Detector
  • Sensitivity (137Cs): 1050 cpm per mR/hr
  • Range:
    • 0 to 200 mR/hr
    • 0 to 210,000 cpm
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Model 2401-EWA
End-Window GM Pocket-Size Survey Meter with Alarm
  • Alpha-Beta-Gamma Survey
  • 3-Range Analog Meter
  • Internal End-Window GM Detector
  • Sensitivity (137Cs): 1050 cpm per mR/hr
  • Range:
    • 0 to 200 mR/hr
    • 0 to 210,000 cpm
  • Alarm
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Model 2401-P
Dose Pancake GM Pocket-Size Survey Meter with Dose Filter
  • Alpha-Beta-Gamma Survey
  • 3-Range Analog Meter
  • Internal Pancake GM Detector
  • Sensitivity (137Cs): 3300 cpm per mR/hr
  • Range: Meter Face Dependent
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Model 2401-S
microR Pocket-Size Survey Meter
  • Low-Level Gamma & X-Ray Survey
  • 3-Range Analog Meter
  • Internal 18 mm dia. CsI Scintillator Detector
  • Sensitivity (137Cs): 100 cpm per µR/hr
  • Range: 0 to 50 µSv/h (0 to 5000 µR/hr)
  • Alarm
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Model 2402
Pocket-Size Survey Meter with Alarm
  • 3-Range Analog Meter
  • Supports GM & Scintillation Detectors
  • Alarm
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Model 2403
Pocket-Size Survey Meter
  • 4-Range Analog Meter
  • Supports GM & Scintillator Detectors
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