Feature●High-Visibility . 75 In. x 2. 5 In. LCD Backlit Display●(3) Units of Measure: kg/Oz. /Lbs.●Automatic Shut-Off After 10 Minutes, Backlight Will Shut Off After 3 Minutes●Fully Enclosed and Removable Metal Scale Platform Enables Use of Product In or Out of the Protective CaseDescription The OEM Digital Refrigerant Scale is ideal for servicing HVAC and Automotive A/C systems. Refrigerant can be measured in standard and metric units and has a built-in alarm to indicate when the scale capacity has been exceeded.