The Mastercool Accu-Charge II Electronic Refrigerant Scale is the perfect tool for any refrigeration technician. The pause/charge feature allows you to stop and continue charging, while the alarm will sound before the charge is complete, allowing you to turn off the refrigerant supply. The strong aluminum base with a rugged and non-slip platform provides extra durability while working in any environment. The included compact and heavy duty carrying case allows for easy portability to any job site. FleetPride is your First Click in Heavy Duty®.