The Precision 3+ Power Meter is a lightweight crank-based power measurement system compatible with Shimano Dura Ace 9200 components. It transmits watts, cadence, and calories to your head unit 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 waterproof, weighs just 9g, and maintains a low profile design with an indicator light for easy status monitoring. The Precision 3+ delivers +/-1% accuracy across a 0-4000 W power range and supports cadence measurement from 30-170 RPM. An automatic terrain selector adapts to your riding conditions, while the CR2032 coin cell battery provides up to 800 hours of battery life. The power meter is backed by an industry-leading 3-year warranty.