About This PRECISION MEASUREMENT: This micron gauge delivers ultra-fine resolution from 0.5 to 1000 microns with a full 0 to 20,000 micron range, functioning as a vacuum pressure gauge for accurate monitoring during system evacuation and testing applications IDEAL FOR HVAC SYSTEM USE: This HVAC micron gauge supports system evacuation and diagnostics; Our AC gauge and refrigeration gauge monitors vacuum levels across service, maintenance, and installation tasks FAST DIGITAL RESPONSE DISPLAY: Features a backlit LCD with seven selectable units, allowing this vacuum gauge to provide quick readings with a 0.5 second response time for clear vacuum monitoring in various environments ADVANCED SENSOR DESIGN: Compatible with A2L refrigerants, this vacuum gauge features a highly durable sensor that maintains accuracy when exposed to oil residue and typically requires no cleaning, plus a removable magnetic hanging strap for convenience PORTABLE AND EASY TO USE: Designed with durable housing and a compact, lightweight build, this vacuum gauge is easy to transport and operate in the field; Suitable for multiple industries requiring consistent vacuum measurement, including HVAC service Overview Brand : Supco Material : 42 Item dimensions L x W x H : 9 x 2 x 5 inches Item Weight : 4 ounces Number of Items : 1