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INDICATED USE: Alpha beta gamma survey; Sample counting
DETECTOR: End window halogen quenched G-M
WINDOW: 1.7 plus or minus 0.3 mg/cm squared mica
WINDOW AREA:
Active - 6 cm squared
Open - 5 cm squared
EFFICIENCY(4pi geometry): Typically 2%-C-14; 10%-Sr-90/Y-90; 7%-Pu-239
SENSITIVITY: Typically 2100 cpm/mR/hr (137Cs gamma)
ENERGY RESPONSE: Energy dependant
DEAD TIME: Typically 200 microseconds
COMPATIBLE INSTRUMENTS: General purpose survey meters, ratemeters, and scalers
OPERATING VOLTAGE: 900 volts
CONNECTOR: Series "C" (others available )
CONSTRUCTION: Anodized aluminum housing
TEMPERATURE RANGE: 5 degrees F(-15 degrees C) to 122 degrees F(50 degrees C) 
May be certified to operate from -40 degrees F(-40 degrees C) to 150 degrees F(65 degrees C)
SIZE: 1.8" (4.6 cm) Diameter X 5.8" (14.7 cm)L
WEIGHT: 1 lb (0.5kg)