Review on LuTuo Wireless Cycling Speedometer - Waterproof Bike Speedometer - Bicycle Odometer with LCD Backlight - Automatic Wake-up & Multi-Functions Cycle Computer for Outdoor Sports MTB BMX - Men and Women by Marco Wilson

Display shows nothing, distance, miles per hour or current speed. The only thing that works is the time set and the temperature seems to work. I tried different locations and made sure each was within the required distance. I even tried spinning the bike via wheel rotation with the display a few inches away and it couldn't read the sensor. Don't waste money, just buy a wired sensor. Too bad because it looks very nice. To update. The seller approached me with some advice and was helpful. Found a working solution. It can now be read that the design of the sensor needs to be improved somewhat. It would have been nice to add a quick reset button, but overall it's ok.