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Detector: 3He tube (LND 25185 or equivalent)
Moderator: 22.9 cm (9 in.) diameter cadmium-loaded polyethylene sphere
Measurement Range: 0 to 100 mSv/h (0 to 10,000 mrem/hr)
Sensitivity (moderated 252Cf): Typically 10 cpm per µSv/h (100 cpm per mrem/hr) (bare AmBe neutrons)
Energy Response: Provides appropriate inverse RPG curve for neutrons from thermal through 7 MeV, provides response up to 12 MeV
Gamma Rejection (137Cs): < 10 cpm through 0.1 Sv/h (10 R/hr)
Display: 4-digit LCD with 1.3 cm (0.5 in.) height, plus two 0.5 cm (0.2 in.) digits used for overflow counter (scaler mode) and exponential powers (parameter setup)
Alert / Alarm: Pre-programmed alarms for ratemeter and scaler modes
Audio: Built-in audio speaker with audio on/off switch, greater than 60 dB at 0.6 m (2 ft)
Scaler Time: Adjustable from 1 to 999,999 s, can display seconds or minutes
Operating Voltage: Approximately 1200 Vdc
Input Sensitivity: -2 mV
Temperature Range: -20 to 50 °C (-4 to 122 °F)
Environmental Rating: IP rating of 53
Power: Two each “D” cell batteries housed in an externally accessible sealed compartment
Size: Meter (H x W x L): 16.5 x 8.9 x 21.6 cm (6.5 x 3.5 x 8.5 in.)
Detector (H x W x D): 26.2 x 22.9 x 22.9 cm (10.3 × 9.0 × 9.0 in.), including brackets
Weight: Meter: 1.6 kg (3.5 lb) including batteries
Detector: 6.56 kg (14.5 lb)
