Update: Changed to three stars. I eventually found the section in the little booklet how to operate it and through trial and error figured it out. Still a pain though because it always reads "Lo" when I turn it on.Original: The instruction book is terrible. Walks through all the technical aspects and modes to use but there isn't a "here's how to operate it" section. When turned on it reads "Lo". So I changed the batteries and still says "Lo" even though the battery indicator shows fully charged batteries. I press scan and wipe across my forehead but can't tell if its doing anything. There's no beep, when you press the mode and then press scan it doesn't clear the previous info on the screen, there's no beep, there's no change to the screen indication its doing anything so I have no idea if it's ready or not. I scan and the previous info is still on the screen. Did it work? I have no idea.
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