Review on 🔍 Aprvtio ALD-100 Refrigerant Leak Detector: Effective Freon Leak Detector with Halogen Gas Tester for HVAC AC Systems - R22 R410A R134A - 7 Adjustable Sensitivity Levels - Max Sensitivity of 0.11oz/yr by Peter Joseph

Great leak detector for the money. As with all leak detectors, sensitivity adjustment (calibration) is very important to get accurate results. This sniffer is very sensitive and will come in handy in hard-to-reach places. The probe is a good size and is also ribbed enough to get into those hard-to-reach places. The sound is loud enough and the lights will warn you when you find a leak in the system. This tool, like most others, takes a little time to learn and use effectively before you get the hang of it. Overall, this is a good tool that will get the job done. It comes with a few extra attachments, batteries and a slim carrying case.