Model 2401-P Pancake GM Pocket-Size Survey Meter
The Model 2401-P instrument is a general purpose, pocket-size radiation detection meter designed around the venerable GM pancake detector. The detector is conveniently packaged inside the instrument with a protective screen window. This instrument is available with a variety of meter faces for measuring contamination and exposure rate in either R or Sv units (see list on the Meter Faces tab).