The Sigma Pure 1 cyclo computer simultaneously displays the three most requested cycling functions on one large, easy to read screen. Switch between the trip view and the totals view with just one touch of the button. The cyclo computer offers 5 function like current speed, day trip or riding time. Data transfer is wireless up to 70 cm. Each turn of the wheel sends data from the wireless transmitter to the receiver integrated in the computer. This Sigma cyclocomputer is waterproof, with IPX8 coverage. The device holder has been specially designed to match the thin profile of the Pure1. When placed in this bracket, the cyclocomputer appears very elegant on the handlebars.