Leak Detectors | Buy HVAC Refrigerant Leak Sniffers Online

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Pinpoint R32, R410A & A2L leaks fast with electronic detectors from Mastercool, Hilmor, and Inficon.

Stop guessing and start repairing. This collection features heated diode and infrared refrigerant leak detectors chosen for Australian conditions. Whether you need an R32-ready "sniffer" for splits or a UV dye kit for intermittent leaks, we stock the tools to prove your work.

Quick Guide: Heated Diode vs. Infrared

Sensor Type	Best For	Pros
Heated Diode	General Service (R410A/R32)	High sensitivity to all halogenated gases. Cost-effective.
Infrared (IR)	Heavy Commercial Use	Longest sensor life (10+ years). Won't trigger on oil or soap.
Bubble / UV Dye	Visual Confirmation	Essential for pinpointing the exact micro-leak location.

Leak Detection Pro Tips

R32 Compliance: R32 is mildly flammable (A2L). Ensure your detector is explicitly rated for combustible gases to avoid safety risks.
The "Double Check" Method: Use an electronic detector to find the general area, then confirm with Bubble Spray (like Viper Big Blu) to show the client exactly where the bubbles form.
Don't Skip Nitrogen: Electronic sniffing does not replace a Nitrogen Pressure Test. Use detectors to find the leak after your pressure drops.

Common Questions

Are these leak detectors suitable for R32 (A2L)?

Yes. Many modern detectors (especially Heated Diode and specific IR models) are rated for R32. Always check the product specifications for "A2L" or "R32" compatibility before purchase.

Do I still need UV dye if I have an electronic detector?

Yes. They work best together. Electronic detectors locate the general "cloud" of gas quickly, while UV dye is perfect for finding slow, intermittent leaks that may take days to appear.

Does a leak detector replace a nitrogen pressure test?

No. Nitrogen testing verifies the system's integrity under pressure. A leak detector is a diagnostic tool used to locate the hole once you know a leak exists.

HVAC Shop Australia | Support: 0412 333 115
Compliance: Always follow the Refrigerant Handling Code of Practice when managing leaks.

Showing 1 - 24 of 29 products