VIVOHOME 220 LBS High Precision Electronic Digital Refrigerant Charging Weight Scale with Case for HVAC A/C, Orange

COMPACT & PORTABLE - Compact, portable battery design; Operates on one 9V battery (battery not included); Three separate display modes for kg, oz, and lbs.; Digital charging scale capacity is up to 220 pounds and comes with a hard carrying case for extra protection. HIGH-QUALITY CONSTRUCTION - High-visibility LCD screen and backlight for display; With a large LCD screen and backlighting, you'll have no trouble keeping track of your measurements; Professional and high precision design can meet your different measurement requirements. NON-SLIP DESIGN - Aluminum combined with silicone creates high traction and prevents slippage; VIVOHOME refrigerant charging weight scale has a textured rubber coating on the platform surface, which helps tanks not to fall off during the measurement. AUTO-SHUT OFF - Automatically shuts off after 10 minutes of inactivity; Backlight will shut off after 3 minutes of inactivity; This refrigerant scale features an auto-zero button that enables technicians to set the value to zero after measuring the cylinder weight, which helps for accurate recording of measured values. FAIL-SAFE DESIGN - When the load exceeds the specified range, the display will show ""FULL""; This unit is designed with a fail-safe feature that will close the valve in the event of power loss due to low battery voltage or accidental shutdown of the unit