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* (Includes survey meter, batteries, cable & probe. Johnson systems utilize BNC type connectors.)
MODELDESCRIPTIONAPPLICATION
GSM 115 GP
4 Range Microprocessor Survey Meter
Analog Readout
w/ end window GM probe
Max. 500,000 CPM & 200 mR/hr
Electronic Dose Linearization 		Alpha, Beta & Gamma Contamination
Gamma Dose to 200 mR/hr
14C, 32P, 35S, 137Cs
(Based on 137Cs calibration)
GSM 115 HP
4 Range Microprocessor Survey Meter
Analog Readout
w/ pancake GM probe
Max. 500,000 CPM & 200 mR/hr
Electronic Dose Linearization 		Most Sensitive to Alpha, Beta & Gamma Contamination
Gamma Dose to 200 mR/hr
14C, 32P, 35S, 137Cs
(Based on 137Cs calibration)
GSM 115 GL
4 Range Microprocessor Survey Meter
Analog Readout
w/ low energy gamma scintillation probe
Max. 500,000 CPM		 Most sensitive to iodine 125
38% + 2 pi efficiency 125I also detects 131I, 137Cs
(Cannot be dose calibrated.)
GSM-500GP
4 Range Microprocessor Survey Meter
Analog Readout
Auto ranging
w/GP-200 end window GM probe
Max. 500,000 CPM & 200 mR/hr
Electronic Dose Linearization		 Alpha, Beta & Gamma Contamination
Gamma Dose to 200 mR/hr
14C, 32P, 35S, 137Cs
(Based on 137Cs calibration)
GSM-500HP
4 Range Microprocessor Survey Meter
Analog Readout
Auto ranging
w/HP-256 pancake GM probe
Max. 500,000 CPM & 20 mR/hr
Electronic Dose Linearization		 Most Sensitive to Alpha, Beta & Gamma Contamination
Gamma Dose to 200 mR/hr
14C, 32P, 35S, 137Cs
(Based on 137Cs calibration)
GSM-500GL
4 Range Microprocessor Survey Meter
Analog Readout
Auto ranging
w/GLE-1 low energy gamma scintillation probe
Max. 500,000 CPM		Most sensitive to iodine 125
38% + 2 pi efficiency 125I also detects 131I, 137Cs
(Cannot be dose calibrated.)


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Copyright © 2007 William B. Johnson
200 AEI Drive
Lewisburg, WV 24901
Phone:   304.645.6568
FAX:  304.645.2182
buyjohnson@msn.com