I'm in the market for a handheld leak detector & wondering which way to go.

Does anyone have information on which technology is best for accuracy, susceptibility to false positives?

Are Fieldpiece infra red superior in any way to heated diode or negative corona detectors?

What's flavour of the month?

Of the brands I've used in the past, I'm inclined to avoid CPS. D-Tek seemed ok, Bacharach seemed pretty good - few false positives with it. The Tek-mate I had I didn't fully trust, but it was a hand-me-down.