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Title: Weak signal
Review: I don't know if my specific product was defective or if it was a design flaw, but the "weak signal" symbol and accompanying beep were constantly coming up. I had intended to use this during mountain biking, but it would not keep accurate distance. I even tested it while driving, where I could compare the odometer reading in my car with the odometer on the GPS. Still, the Foretrex was significantly lower than the actual mileage.
