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External Detector: Two energy-compensated GM tubes
Internal Detector: CsI scintillator; Background to 500 µSv/h (50 mR/hr)
Energy Response: Within 25% of true value from 60 keV to 3 MeV
Linearity: Readings within 10% of true value
Display: Three-digit auto-ranging LCD. Units: (μ)(m)(k)(M)R(/h), (μ)(m)(k)(M)Sv(/h), (k)cps, (k)(M)cpm. Indicators: bar graph, mode (MAX, INTG), three alarm levels, fault messages (FAULT, OVERLOAD, LOSS OF COUNT, OVERRANGE), USB, wireless, audio, and low-battery.
Display Range: 1 µSv/h to 10 Sv/h (0.1 mR/hr to 1000 R/hr)
Range Selection: LOW range (1 µSv/h to 20 mSv/h, or 0.1 mR/hr to 2 R/hr);
HIGH range (8 mSv/h to 10 Sv/h, or 0.8 R/hr to 1000 R/hr);
or AUTO range across full display range
Response Time: User-selectable from 1 to 60 seconds, auto SLOW, auto FAST, fixed SLOW (22 s), fixed FAST (4 s)
Alarms: Three adjustable alarm setpoints for count rate, exposure/dose, count, and accumulated dose alarm set-points adjustable over the display range
Overload Protection: High count rate saturation protection designed to prevent false display of lower count rates. If the instrument detects an overload condition, OVERLOAD will appear on the display and an audio warning will be triggered.
Overrange: If the reading exceeds the predefined detector range, the instrument will flash a maximum reading, an audio warning will be triggered, and OVERRANGE will appear on the display
Audio: Approximately 4.5 kHz, click audio greater than 65 dB at 0.6 m (2 ft.), alarm audio greater than 72 dB
Calibration Protection: Internal dipswitch to disable front-panel calibration parameter changes
Power: Four "AA" batteries
Temperature Range: -20 to 50 °C (-5 to 122 °F)
May be certified for operation from -40 to 65 °C (-40 to 150 °F)
Environmental Rating: NEMA rating of 3x; IP rating of 53
Size (H x W x L): 20.0 x 11.4 x 125.1 cm (7.9 x 4.5 x 49.25 in. [4.1 ft.]) retracted, fully extended length 466.7 cm (183.75 in. [15.3 ft.])
Weight: 2.5 kg (5.4 lb) including batteries and shoulder strap
