The Accutools DS-220R Charging Scale is one of the most affordable and reliable digital refrigerant scales on the market, listing at $199.95. AccuTools accuracy is 100 kg (220 lb.) capacity, 2 gram (0.1 oz.) resolution, and 0.5 percent accuracy under all conditions. Critical charging of refrigeration systems is made easy with DS-220R, says the company. The CM-500 Automatic Charging Module, used with the DS220R, automates the dispensing of fluids and gases (sold separately).

Core Enterprises Inc., 3650 Coral Ridge Dr., Ste. 101, Coral Springs, FL 33065; 954-227-0781; 954-227-1094 (fax);;