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Detector: Internal energy-compensated GM
Energy Range: 60 keV to 2 MeV
Display: 3½ digit backlit LCD display
Display Range: 0.01 mR/hr (mR) to 999 R/hr (R)
Also displays time remaining from 19:59 to 00:01 (in hh:mm format)
Gamma Response: Typically 18 cpm per mR/hr
Alerts & Alarms: Radiation alarms are adjustable over entire range. There are distinct alerts and alarms for exposure and accumulated dose:
Dose rate alert
Dose rate (hi)
Accumulated dose alert
Accumulated dose (hi)
Time remaining to allowed dose (hi)
Detector failure alert
Low-battery notice when only 8 hours remain
Loss of Count Protection: If no pulses are received from the detector in 60 minutes, instrument failure is indicated by an audible and visual alarm and the display alternating between "0.0" and "F"
Audio: Built-in speaker (typically 95 dB at 30.5 cm [1 ft])
Calibration: Requires no tools or software when exposed to a traceable radiation field
Calibrated Range: Normally calibrated from: 2 mR/hr to 999 R/hr
Temperature Range: -40 to 65 °C (-40 to 150 °F)
Power: 2 each lithium coin cell batteries (see Warning note below)
Battery Life: Typically 6000 hours. Provides 8 hours warning of low battery.
Construction: Injection-molded plastic housing with sub-surface printed membrane front panel, completely gasketed for water resistance
Size (H x W x L): 7.6 x 5.4 x 1.7 cm (3.0 x 2.1 x 0.69 in.)
Weight: 144 g (5.1 oz), including batteries
