LUDLUM 2401-EWA End-Window GM Pocket-Size Survey Meter With Alarm (0 ~ 200 mR/hr; 0 ~ 210,000 cpm)

Indicated Use: Alpha, Beta, Gamma survey

Detector: 1.4 cm (0.57 in.) diameter end-window GM

Range: 

0 to 200 mR/hr

0 to 210,000 cpm

Sensitivity (137Cs gamma): Typically 1050 cpm per mR/hr 

Energy Response: Energy Dependent

Meter Dial: 0 - 2 mR/hr, 0 - 2.1 kcpm, BAT OK

Multipliers: x1, x10, and x100

Response Time: Typically 11 s from 10% to 90% of final reading

Alarm: Yes

Audio: Click-per-event, may be turned off by moving selector to QUIET position

Power: 9 volt battery

Battery Life: Typically 250 hours with alkaline battery at normal background levels

Construction: Drawn and cast aluminum, with membrane panel

Size (H x W x L): 4.6 x 8.4 x 13.5 cm (1.8 x 3.3 x 5.3 in.)

Weight: 0.4 kg (0.9 lb), including battery

Datasheet

Manual