Specifications:
Detector:
Halogen-quenched GM tube with mica end window. Mica window density 1.5-2.0
mg/cm2. Effective window diameter is .360 inch. Side wall is .012 inch thick.
Display:
4-digit liquid crystal display with mode indicators.
Display updates every 60 sec.
Energy Sensitivity:
Detects alpha down to 2.5 MeV; typical detection
efficiency at 3.6 MeV is greater than 80%.
Detects beta at 50 keV with typical 35% detection efficiency.
Detects beta at 150 keV with typical 75% detection efficiency.
Detects gamma and x-rays down to 10 keV typical through the window, 40 keV
minimum through the case. Normal background is 5-20 CPM.
Gamma Sensitivity:
1000 CPM/mR/hr referenced to Cs-1 37.
Operating Range:
mR/hr: .001 (1 µR) to 50
CPM: 0 to 50,000
Total: 0 to 60,000 counts
Optional - µSv/hr: .01 to 500
Accuracy:
+/-10% typical, +/-15% maximum.
Alert: Pulsating beeper sounds the alert. Three separate adjustable alert
levels are used for mR/hr, CPM, µSv/hr:, and Total.
Count Light:
Red LED flashes with each count.
Audio Indicator:
Sounds with each count (can be switched off for silent operation).
Outputs:
Dual miniature jack sends counts to CMOS- compatible devices, including computers,
data loggers, and educational data collection systems. Submini jack provides
audio output to an external earpiece, amplifier, or tape recorder.
Anti-Saturation:
Readout will hold at full scale in high radiation fields as high as 100 times
the maximum reading.
Power:
One 9-volt alkaline battery. Battery life is typically 2000 hours at normal
background radiation levels.
Temperature Range:
-10° to +50°C (14° to 122° F)
Weight:
117 grams (6.5 oz.) without battery.
Size:
150 x 80 x 30 mm (5.9 x 3.2 x 1.2 inches).
Includes:
Carrying Case, 1 year limited warranty and CE mark.
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