Eberline RM-14S Count Rate Meter - USED Gamma Detector Once you selected the timer

Once you selected the timer option

The output is displayed on a wide angle panel meter

These are the two door variety whereby you could place it at the boundary of a controlled area and pass items through to cleared areas

GPS location (if enabled) - 3rd party GPS units can be bought to give sub-meter GPS to iOS Devices

Will handle any number of different probes with fully adjustable HV and threshold

Eberline RM-14S Count Rate Meter - USED Gamma Detector Once you selected the timerEberline model RM 14S 0 1M CPM Indicated Use: Area monitoring or frisking station Display: Analog Display Range: 0 5 Display Scales: X10, X100, X1000 X10K X100K X1M Audio: Analog volume adjustment High Voltage: Adjustable Response Time: Adjustable Dead Time: Adjustable High Alarm: Adjustable Features: 5micro Amp recorder and a scaler output Connector: BNC Calibration Controls: Independent scale calibration potentiometers Has integral battery or can be