Anyone use them ?

If so which model do you use and where can I purchase one ?/

Thanks in advance..

yes same here interesting

here:
http://www.vacinnovation.co.uk/page/1sntf/Vacuum_Connectors_Hoses_and_Gauges/Ultrasonic_Leak_Detector.html

yes and how much does it cost?

I have a sealey one designed for car windscreens, has helped me out a few times. Not something i tend to use every day, but its a god send when you cant find the leak easily

I have been using the accutrack leak detectors for years and they work great.

http://superiorsignal.com/products/ultrasonic-instruments/accutrak-vpe-ultrasonic-leak-detector

Dunno, give them a ring and see... they are quite approachable and sometimes have ex-demo stuff

No, I haven't used the transmitter.

Will be getting one .

The sealey needs the transmitter to work doesn't it ?