Ludlum Model 54

   ●  Small Article Monitor with 4.6 ft³ Interior Volume

   ●  True 4∏ Counting Geometry for Optimized Homogenous Efficiency

   ●  QPASS Counting Technology for Shorter Counting Cycles

   ●  Large 12.1 in. Color LCD with Touch Screen Interface

   ●  USB Port for Printer-Free Operation and Calibration

 Ludlum Model 54A

   ●  Small Article Monitor with 1.6 ft³ Interior Volume

   ●  True 4∏ Counting Geometry for Optimized Homogenous Efficiency

   ●  QPASS Counting Technology for Shorter Counting Cycles

   ●  Color LCD with Touch Screen Interface

   ●  USB Port for Printer-Free Operation and Calibration