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​Ludlum Radiation Friskers


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Model 26
Ludlum Part Number: 48-3885
Integrated Lightweight Radiation Frisker
Alpha/Beta/Gamma Survey, Sample Counting
Standard 15.51 cm² GM Pancake Detector
Efficiency: 2% C-14; 22% Sr-90/Y-90; 18% Tc-99; 32% P-32; 11% Pu-239; 0.2% I-125; <1% Tc-99m
Ratemeter, MAX Hold, Scaler Modes
Count Rate and Scaler Alarms, ​cpm/cps
Simple Two-Button Operation​
High-Impact Plastic, Water-Resistant Seals
Automatic Display Backlight
Includes Wrist Strap and Lanyard
​​Data Sheet
Product Manual
Quick Start Guide
Calibration Procedure
Model 26 Overview (YouTube)
Model 26 Tutorial (YouTube)

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Model 26-1 DOSE
Ludlum Part Number: 48-4007
Integrated Lightweight Radiation Frisker
Alpha/Beta/Gamma Survey, Sample Counting
Standard 15.51 cm² GM Pancake Detector
Efficiency: 2% C-14; 22% Sr-90/Y-90; 18% Tc-99; 32% P-32; 11% Pu-239; 0.2% I-125; <1% Tc-99m
Includes Dose Compensation Filter to Flatten Energy Response for Exposure Rate
Dead-Time Correction (DTC) Allows Gamma Measurements up to 500 mR/hr
Count Rate, Exposure, Dose, Counting Alarms​
Simple Three-Button Operation
​Displays in mR/hr or cpm
High-Impact Plastic, Water-Resistant Seals
Automatic Display Backlight, Flashing ALARM
Includes Wrist Strap and Lanyard
Data Sheet
Energy Compensation Filter Report
Model 26 Overview (YouTube)
Model 26 Tutorial (YouTube)

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Model 26-2
Ludlum Part Number: 48-3995
Integrated Lightweight Radiation Frisker
Alpha/Beta/Gamma Survey, Sample Counting
Standard 15.51 cm² GM Pancake Detector
Efficiency: 2% C-14; 22% Sr-90/Y-90; 18% Tc-99; 32% P-32; 11% Pu-239; 0.2% I-125; <1% Tc-99m
​​Ratemeter/Peak/Timed Frisk Modes
​Count Rate and Scaler Alarms​
Simple Two-Button Operation
Displays in cpm or cps
High-Impact Plastic, Water-Resistant Seals
Automatic Display Backlight
Includes Wrist Strap and Lanyard
Daylight-Visible Green and Red Status LEDs
Data Sheet
Product Manual

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Model 26-3
Ludlum Part Number: 48-4179
Integrated Lightweight Radiation Frisker
Alpha/Beta/Gamma Survey, Sample Counting
Standard 15.51 cm² GM Pancake Detector
Efficiency: 2% C-14; 22% Sr-90/Y-90; 18% Tc-99; 32% P-32; 11% Pu-239; 0.2% I-125; <1% Tc-99m
Dead-Time Correction (DTC) Allows Gamma Measurements up to 1000 mR/hr 
​​Count Rate and Scaler Alarms
Ratemeter/Peak/Timed Frisk Modes
Simple Two-Button Operation
Displays in cpm or cps
High-Impact Plastic, Water-Resistant Seals
Automatic Display Backlight
Includes Wrist Strap and Lanyard
Daylight-Visible Green and Red Status LEDs
Data Sheet
Product Manual

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Model 3277/1
Ludlum Part Number: 48-4357
Alpha/Beta Frisker
7-inch Color Touch-Screen Display Shows All Readings Simultaneously in a Large, Simple Layout
Simple Setup and Use
Can Be Used with Various Scintillation or Proportional Detectors
​Either Imperial or SI Units
Rechargeable Backup Battery
Automatic Background Subtraction During Measurements
Data Sheet
Product Manual
Video

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Model 215
Ludlum Part Number: 48-3695
Alpha Frisker/Hand Monitor/Glovebox Monitor
Alpha Air Proportional Radiation Detector with Integrated Electronics
10% Pu-239 Efficiency (4π)
User-Adjustable Alarm Audio
Operates up to 30 Minutes Between Charges
139 cm² Window Active Area
110 cm² Window Open Area
​0.4 mg/cm² Window
Detector Operates Independent of Stand
No Batteries, Cable or Gas Required
Data Sheet
Product Manual
Alpha Spot Monitor
Detector Outline Drawing
Stand Outline Drawing


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Radiation Safety & Protection, LLC
6555 Sugarloaf Parkway  Suite 307-333  Duluth, GA 30097
Phone: (770) 363-0925  Email:  [email protected]

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