The detector employed is a 9 inch diameter, cadmium loaded polyethylene sphere with a BF3 tube in the center. The accompanying counting instrument is Eberline s Model ASP-2e. When the useful range is exceeded, an over-range alarm is given. The instrument has a built-in speaker, serial port for PC setup and calibration, and an easy access external battery compartment to facilitate battery replacement.
Rejection is dependent on voltage selected.
Nrd Comes complete with 9 NRD detector, ASP-2e counter, detector bracket for attaching detector to counter and a 36 connecting detector cable.