LUDLUM 5 Geiger Counter (0–20 mSv/h (0–2000 mR/hr))

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

Datasheet

Manual