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Indicated Use: Gamma survey
Detector: 2 energy-compensated GMs, housed inside instrument enclosure
Detection Range: 0 to 20 mSv/h (0 to 2000 mR/hr)
Energy Response: Within 15% of true value from 60 keV to 3 MeV
Meter: Analog dial: 0 to 2 mR/hr, BAT TEST (others available)
Backlight: No
Multiplier: x0.1, x1, x10, x100, x1000
Reset: Pushbutton to zero meter
Calibration Controls: Accessible from the front of the instrument
Alert / Alarm: No
High Voltage: 540 ± 25 Vdc
Overload Protection: Yes
Audio: Built-in unimorph type speaker with ON/OFF switch
Temperature Range: -20 to 50°C (-4 to 122°F)
Working Environment: Normal working conditions
Power: Two each "D" cell batteries (housed in sealed compartment that is externally accessible)
Battery Life: Typically greater than 2000 hours
RS-232 Port: No
Size (H x W x L): 19.0 x 8.9 x 21.6 cm (7.5 x 3.5 x 8.5 in.)
Weight: 1.6 kg (3.5 lb), including batteries
