Title: It did not work
Review: I had high hopes for this device. I have been chasing a slow leak in the A/C of my hot rod for months. First the device could not seem to detect anything at all. So I took it to my local A/C guy to compare it to his version. He squirted a little coolant in the air and the device suddenly sprang to life.....and never again shut off. I changed the tip, replaced the batteries, nothing seemed to be able to stop it. So it went from nothing at all to alarm all the time. Not very helpful.
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