Air Conditioning Leak Detection Tools: what Claude and GPT would buy
Two AI models chose on their own, with no web access. Nobody tested these products: this is what each one says, and how to check it.
They disagree: Claude chooses Inficon and GPT chooses Fieldpiece
In Automotive, Claude and GPT choose the same brand in 60 of 112 categories.
Claude Opus 5.5 · October 27, 2026
Inficon D-TEK Select
A heated-diode electronic detector that is sensitive to HFC and HFO refrigerants, with a long-lived, replaceable sensor.
Not for: Occasional DIYers, who will do better with a UV dye kit.
GPT 6.1 Sol · November 10, 2026
Fieldpiece DR82
Infrared sensing detects R-134a and R-1234yf refrigerant leaks without UV dye; rechargeable operation makes repeated diagnostic work convenient.
Not for: Those seeking a low-cost UV dye kit.
Claude also lists Fieldpiece among the brands that matter.
Which one fits you
budget electronic detector
Inficon TEK-Mate (line)
A simpler, cheaper detector from the same maker for occasional use.
Not for: Daily professional use where finding very small leaks matters.
UV dye leak finding
Spectronics Tracerline (line)
An established automotive UV dye and lamp system that pinpoints slow leaks visually.
Not for: Systems where adding dye is not allowed or is already contaminated with mixed dyes.
Check before you buy
Where to find Inficon D-TEK Select
- Tequipment
- Johnstone Supply
- eBay
Also seen on Amazon.
Shops seen in search results on November 11, 2026. A shop missing here may sell it too. Nothing was checked by a person.
Brands that matter
- Inficon: Leading electronic leak detectors.
- Bacharach: Pro-grade detectors such as the Informant line.
- Fieldpiece: Heated-diode detectors for HVAC/R and automotive.
- Spectronics: Tracerline UV dye and lamps.
What to avoid
- Corona-suppression detectors with no listed refrigerant sensitivity
- Bubble solution alone for evaporator leaks you cannot see
- Over-dosing systems with UV dye