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GSM-115-GL Scintillation Survey Meter for
Low Energy Gamma
System includes GSM-115 survey meter and GLE-1 Low Energy Scintillation Probe 
This four range survey meter and low energy scintillation
probe is an excellent tool for low energy
gamma response from 15 keV to 200 MeV. The GSM-115-GL is a good choice for
Iodine-125 detection. The system is housed with rugged aluminum with
magnetic shielding. The BNC coaxial connector is useful for quick field replacement. Standard items provided with each system include
survey meter, probe, cable, batteries, operations and maintenance manual, and
calibration certificate

GSM-115
Survey Meter & GLE-1 Probe Specifications:
- RANGE: 0-500,
0-5000 & 0-50,000 cpm
- PANEL CONTROLS: OFF
- X1000, X100, X10 & X1--- HV VOLTMETER, BATTERY VOLTMETER
- AUDIO: ON-OFF,
METER ZERO & METER RESPONSE 4 - 20 SECONDS
- PANEL METER:
HIGH TORQUE 2.5" WITH LED INDICATORS FOR PROBE SATURATION & LOW BATTERY
- CALIBRATION
CONTROLS: SEPARATE FOR EACH RANGE & HV
- HIGH VOLTAGE:
300 - 1300 vdc ±1% STABILITY
- AUDIO OUTPUT:
HIGH EFFICIENCY PIEZO ELECTRIC - WATER & SOLVENT PROOF
- POWER SUPPLY: 2---
9 VDC ALKALINE
- FINISH: BLUE
POLYURETHANE ENAMEL
- WEIGHT: 2¼
POUNDS (1 kg) INCLUDING BATTERIES- PROBE 8 ounces (.23 kg)
- DIMENSIONS: 5½" (14 cm) H X 3" (7.5 cm) W X 7" (18 cm)
L ---- PROBE 1 3/4" (7 cm) X 6"(15 cm)
- ENVIRONMENTAL: -20°C -- 60°C ---- 5% -- 95% RH NON
CONDENSING-IPX4
- BEST FOR 125I, MEASURES 137Cs
AND MOST GAMMA CONTAMINATION
- HEAVY DUTY CAST ALUMINUM & STAINLESS STEEL
- HIGH SENSITIVITY 1" x 2 mm SODIUM IODIDE 7mg/cm2
END WINDOW
- PROBE OPERATES AT 900 vdc
- DETECTOR IS MAGNETICALLY SHIELDED
- NYLON COATED STAINLESS STEEL PROBE CLIP
- POLYURETHANE & PVC COATED ALUMINUM PROBE HOUSING
- SUPPORTS ALL JOHNSON GM & SCINTILLATION PROBES
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This system cannot be dose calibrated.
GLE-1 Low Energy Gamma Scintillation Probe:
- OPERATING VOLTAGE: 900
vdc
- DETECTOR CRYSTAL: 1"
(2.5 mm) x 2mm Sodium Iodide
- WINDOW: 42 mg/cm2
- I-125 EFFICIENCY:38% 2
PI
- BACKGROUND: 600cpm
- ENERGY RESPONSE: 15
keV-200 keV gamma
- SENSITIVE AREA: 1" (5
cm2)
- FINISH: Polyurethane &
PVC coated aluminum
- DIMENSIONS: 1 7/8"
(4.8 cm) dia. X 6" (28 cm) long
- WEIGHT: 8 ounces (.23
kilos)
- ENVIRONMENTAL: -20º --
60ºC
5% - 95% RH non-condensing-IPX4
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