INFICON Whisper, Ultrasonic Leak Detector, 711-202-G1

Fantastic item. Just shut off fluorescent lights first, they put off a ton of noise. Found a leak in less than 60 seconds. People who have issues with this don’t know how to use it properly or patiently. It’s really not complicated. I had a leak I couldn’t find with UV dye or soap. This saved my behind and made a happy customer with the first use.

Por mucho, mejor que los detectores que tiene que “oler” el refrigerante. Es súper rápido hacer verificaciones con este equipo y es muy sensible. Excelente herramienta de diagnóstico para los trabajamos en HVAC.

I bought the basic Whisper kit for help in locating truck air leaks and for use in identifying A/C leaks under nitrogen pressure. The supplied open air headphones are not really up to the task. I bought a $10 pair of Koss UR10 headphones and what a difference being able to hear an eye blink and electrical arcing from a light switch. Using the headphones is the way to go instead of the built in alert. I just got the kit a short while ago and have not put it through its paces but will be forthcoming and think it will have a place to aid diagnosis. The one truck A/C I pressurized with nitrogen did not have a leak. Looking forward to see if it can pick up condensor/evaporator leaks. I got to use this today for compressed air leaks on a truck and it found them all in no time flat including the Hi-Lo range valve body on top of the RoadRanger. Using the extension probe it could pick up a leak 8" away from a tank automatic drain valve. I put my finger over the port of the valve and could not tell it was leaking but it was. This ultrasonic leak detector is awesome and a game changer. Will update when used for A/C leaks.

No sensaba correctamente y al ponerme los audífonos solo se escuchaba un ruido de interferencia que lastimaba mucho los oídos .

It does work as advertised but only if the leak rate is large enough to generate where it can detect it. The issue is there is no specifications for that such a grams/year which we in HVAC/R refer to. It does serve a purpose if used within its capability. Good for detecting motor bearing noise, ultrasonic devices, and could detect nitrogen pressurized equipment. Water on the tubing and cores does aid in locating the leak. Using headset is a must. . To give an example of a tiny leak rate where it did not detect it, see attached video.