I'm a retired mechanic and need something for personal use one of them to another gauge and it was only a few psi different, close enough for this type of work.
VIVOHOME 220LB HVAC Electronic Digital Refrigerant Charging Weight Scale β High Precision with Protective Case
9 Review
Lichamp Automotive R1234YF Installer Standard
9 Review
πͺ Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review
π¨ Robinair (15115) VacuMaster Single Stage Vacuum Pump - For Efficient Single-Stage Vacuuming, Delivers 1.5 CFM
9 Review