The PRECISION is accurate to within +/- 1%. This compares to average accuracy of +/- 1.5-2% for most other power meters. Just swap it out for your current left-side crank arm and you're ready to ride! In addition to ANT+, the PRECISION also transmits data via the Bluetooth SMART wireless protocol.
This item is in the category "Sporting Goods\Cycling\Bicycle Electronics\Power Meters". The seller is "mat-beas" and is located in this country: GB. This item can be shipped to United Kingdom.