PRCS-90 series refrigerant charging scales utilize the most technologically advanced and precise refrigerant meter available today with features that can not be found any where else,It is ideal for HVAC and refrigeration service, inciuding Critical Charging of small refrigeration systems. With the PRCS-9020 you can measure weight in both metric and English units.
PRCS-90 series scales are programmable,and  built –in alarm to indicate a programmed threshold has been exceeded.

   High visibility LCD display
  PRCS-9020 measures weight in kg and lb.
  PRCS-9030 measures weight in kg,lb, oz.
  Built –in memory remembers all previous settings.
  Built-in alarm function
  Long battery life reach 100 hours
  High accuracy and resolution (100kgs / 5g).
  Programmable
  Can be calibrated in the field with inexpensive reference weight.