Bought this from watttmann (the manufacturer). A little bit cheaper from him, but you will more than make that up with shipping over here. Wattmann is a great guy. Answered my email immediately when I had a question. Instructions are pretty straight forward. Allocate 2-4 hours depending on how fast you work. I started at 9 at night and I work slowly to minimize mistakes. I needed the bike the next morning so that wasn't the smartest move. Anyways, this thing works just as advertised. Temperature needle moves nearly vertical within about a mile of driving, and will hover between 11 o'clock and 1 o'clock. The product itself is quality too.Read All Reviews
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