Images SI GCA-07W Digital Geiger Counter Nuclear Radiation Detector (Alpha, Beta, Gamma, X-Ray)

Manufacturer: Images Scientific Instruments Inc.

(Images SI)Model Series: GCA-07W / GCA Digital Geiger CounterRadiation Detection: Alpha ($alpha$), Beta ($beta$), Gamma ($gamma$), and X-RaysDetector Type: Internal Geiger-Müller (GM) halogen-quenched tube (LND-712 standard)Measurement Units: Imperial (mR/hr) and SI Metric ($mutext{Sv/hr}$), Counts Per Minute (CPM), Counts Per Second (CPS)Measurement Range: 0.001 mR/hr to 1000 mR/hr (0.01 $mutext{Sv/hr}$ to 10.0 mSv/hr)Count Resolution: 0 to 10,000 CPS / 0 to 600,000 CPMDisplay Interface: 2-line x 16-character high-visibility backlit digital LCD screenAudible / Visual Alerts: Built-in audio clicker/speaker with mute control and visual LED radiation pulse indicatorData Output: 3.5mm serial data port for continuous PC graphing, logging, and mappingCalibration: NRC-certified source factory calibrated (NIST traceable standard)Power Source: 9V alkaline battery operation or 110/220V external AC power adapterEnclosure: Rugged, handheld impact-resistant ABS polymer case