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Detector: Internal energy-compensated GM
Detector Range: Background to 250 mSv/h (25 R/hr)
Energy Response: 60 keV to 3 MeV (± 25%)
Linearity: within 10% of true value
Display: 3-digit auto-ranging LCD with large 20 mm (0.8 in.) digits.
Units: (k)cps, (k)cpm, (µ)(m)R(/h), (µ)(m)Sv(/h).
Indicators: bar graph, MAX, ALARM, USB, audio, low-battery.
Response Time: User-selectable from 1 to 60 s, or Auto-Response Rate FAST or SLOW
Resolving Time: Approximately 5 µs as defined by IEC 60325
Alarms: Two adjustable count rate, exposure/dose, and count alarm setpoints adjustable over the display range
High Voltage: 550 V
Threshold: -4 to -100 mV, typically set to -35 mV for GM detectors
Audio: Approximately 4.5 kHz, click audio greater than 65 dB at 0.6 m (2 ft.), alarm audio greater than 72 dB
Power: Four alkaline “AA” batteries
Battery Life: Approximately 750 hours of operation (as low as 100 hours with backlight configured for continuous-on), 16-hour low battery warning
Construction: High-impact plastic with water-resistant rubber seals and separate battery compartment
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 5 or IP rating of 53
Size (H x W x L): 16.5 x 11.4 x 21.6 cm (6.5 x 4.5 x 8.5 in.)
Weight: 1.06 kg (2.3 lb)
