Review on Zwq Waterproof Speedometer Multi Function Display Speed Accessories by Ronnie Cole

general recommendation - pay a little more and get a better unit Cons - terrible (and non-existent) instructions - I could only tune as I had another similar one Device is the Finicky. Unlike other devices, you have to try a lot to get the sensor, magnet and display on your bike or it just won't work. This is compounded by bad instructions. Pros: Once you figure it out and get over your frustrations, this might work for you. The display is large and offers multiple data points