I like 2 key features of these sensors, the first feature is that you can program how long they stay on before they turn off automatically (or even program them to stay on!), and the second function is if they turn off before you, they remember which refrigerant was previously selected so you don't have to search for which one again.
Lichamp Automotive R1234YF Installer Standard
9 Review
๐ช Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review
๐ UView 560000 Combustion Leak Tester: A Reliable Tool for Efficient Diagnosis
9 Review
๐จ Robinair (15115) VacuMaster Single Stage Vacuum Pump - For Efficient Single-Stage Vacuuming, Delivers 1.5 CFM
9 Review