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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