It's ok and they work but they're not the best. If you want a budget kit (and believe me you want a kit for your manifold, 20+ years of HVAC experience here) then you can go with them. if you have to spend more something like yellow jacket with 6" extension.
Enhanced Elitech ILD-300 Infrared Refrigerant Leak Detector: Advanced HVAC Halogen Tester with Selectable Gas Functionality
9 Review
VIVOHOME 220LB HVAC Electronic Digital Refrigerant Charging Weight Scale – High Precision with Protective Case
9 Review
🔍 UView 560000 Combustion Leak Tester: A Reliable Tool for Efficient Diagnosis
9 Review
💪 Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review