Product Description


Mastercool’s high precision charging scale accurately measures small cans of refrigerant for charging systems that need a precise charge. Small cans of refrigerant attach directly to the scale for ease of use. 

  • 7/16”-28 cylinder adapter included for easy attachment of refrigerant cylinder to scale
  • Specially designed for R600a and R290
  • 36” hose with 1/4” swivel female fittings
  • Built-in check valve will hold any remaining refrigerant within the 36” capillary hose
  • Slim design for easy storage
  • Two button keypad for easy operation
  • Large LCD display accurately shows units in grams or ounces
  • One touch tare weighing function
  • Auto zero


  • Capacity: 176 ounces (5000 grams) 
  • Resolution: 0.035 ounces (1 gram)
  • Accuracy: ≤ ±6 g
  • Dimensions: 5.7 (w) x 7.5 (l) x 2.4 (h) inches (145.6 (w) x 190 (l) x 60 (h) mm)
  • Power source: 3 x AA 1.5V battery
  • Auto-off: after 3 hours of inactivity
  • Fitting: 1/4” SAE-M flare fitting with check valve

98201-A: High Precision Charging Scale packaged in a cardboard box
98202-A: High Precision Charging Scale with storage for a 14 oz. refrigerant cylinder (sold separately) packaged in a custom molded plastic case
98202-A-600: High Precision Charging Scale packaged in a custom molded plastic case with a can of R600a refrigerant (14.8 oz (420 g))
98202-A-290: High Precision Charging Scale packaged in a custom molded plastic case with a can of R290 refrigerant (13 oz (370 g))

Also Available:
91050-600-12: R600a Refrigerant Grade Isobutane C4H10 (14.8 oz (420 g) cylinder) packaged 12 per box
91050-290-12: R290 Refrigerant Grade Propane C3H8 (13 oz (370g) cylinder) packaged 12 per box



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