The RY Series is a rugged and heavy duty length totalizer.  It has an all metal housing with a nice finish.  The RY Series can measure in Meter or Yard in 0.1m(y) or 0.01 m(y) display resolutions.  It is available in 4 or 5 digits with digit size of 6.0mm x 4.0mm.  The unit can be reset by a simple push of the reset button.  It is equipped with 2 measuring wheels for stability and accuracy of measurement.  It counts 1 unit for every 3 revolutions of the measuring wheel upto a maximum count speed of 300 meters(yards)/min.  It has a metal base for sturdy mounting.