Best Refrigerant Leak Detector for HVAC Pros (2025 Top Pick)
Leak detection is one of the most critical skills in HVAC fieldwork. The faster you can pinpoint refrigerant loss, the faster you can fix systems, restore performance, and win customer trust. In 2025, you need gear that’s fast, accurate, and jobsite-proven.
Our top pick for HVAC leak detection this year is below:
👉 Check price for the INFICON TEK-Mate Leak Detector
Why It Works in the Field
- All-Refrigerant Detection: Detects HFCs, CFCs, HCFCs, R-410A, R-134a, and more.
- Audible + Visual Alarms: Hear and see exactly when a leak is detected.
- Replaceable Sensor: Built to last through years of regular service calls.
- Slim Probe + Flexible Tip: Ideal for tight coils and cramped units.
👉 Read reviews and specs on Amazon here
Bonus Add-On: Hose Gasket Kit
Prevent leaks and blowouts at the connection point with this Yellow Jacket gasket kit. It fits most 1/4” HVAC hoses and is easy to keep in your field bag.
👉 Check price for the Yellow Jacket Gasket Kit
FAQ: Leak Detectors in 2025
Should I go with an electronic or UV leak detector?
Electronic models like the TEK-Mate are faster for everyday use and don’t require special dyes or prep.
Is this tool beginner-friendly?
Yes — flip it on, run the tip near suspect lines or joints, and listen for the tone increase. No training required to get started.
Final Word
Leak detection is make-or-break for every HVAC technician. With the TEK-Mate and a backup gasket kit in your pouch, you’ll move faster and fix systems before the competition even opens their toolbox.