The Precision 3+ Power Meter is a lightweight crank-based power meter designed for cyclists who want accurate performance data during rides. While riding, it transmits watts, cadence, and calories to your head unit of choice via ANT+ and Bluetooth connectivity. This power meter features Apple Find My integration, allowing you to locate it on an iPhone, iPad, Mac, or Apple Watch when not in use. The device is backed by an industry-leading 3-year warranty and offers exceptional battery life of up to 800 hours on a single CR2032 coin cell battery. The Precision 3+ delivers professional-grade accuracy with +/-1% measurement precision. It features an automatic terrain selector, waterproof construction, low profile design, and an indicator light. At just 9 grams, it adds minimal weight to your drivetrain.