Left Crank Power Sensor 4iiii Precision 3+ Shimano Dura-Ace 9200 Black 4iiii

Our most powerful unit to date, compressed into a smaller, lighter package and supporting Apple Find My, the Precision 3+ power sensor is a proven choice for pros and weekend warriors

Whether you're battling for a qualifying spot at Kona, spending countless hours on virtual platforms or looking to improve your time on the local KOM segment, you need accurate, reliable tools to unleash your potential.

an 800-hour battery life, automatic terrain selection, +/-1% accuracy and a 3-year warranty, the PRECISION 3+ Powermeter will be your trusted tool for years

The Precision 3+ Powermeter is much more than a powermeter. It's a training partner that gives you peace of mind. As you ride, your Precision 3+ power meter transmits watts, cadence and calories to the main unit of your choice. When the meter is not in use, the Find My function is activated, allowing you to view its location on a map. You can add your power meter to the Find My app and locate it on an iPhone, iPad, Mac or using the Find Items app on an Apple Watch

your ready-to-ride Precision 3+ power meter has arrived, simply install it on your bike using the standard Shimano crank installation process. Connect a head unit or computer, and you can start riding with power. Connect to the Find My app with your iPhone or iPad to start tracking your power meter.

Product +s

• Apple Find My : Offer peace of mind knowing where your power meter is.
• 3D Accuracy : Not everyone has a perfect pedal stroke. With an accuracy of +/- 1%, the 4iiii is the only crank-based power meter to use 3 strain gauges to measure all the forces of your pedal stroke.
• Ultra-Small Profile : Thanks to its ultra-low profile, the PRECISION 3 is compatible with more bicycle frames than ever before.
• Waterproof: Designed to perform in our harsh environment. With an IPX7 waterproof rating, you can be sure your power meter can cope with the toughest conditions.
• Battery life: With 800 hours of autonomy, you won't have to worry about changing the battery for years.
• Detects the terrain you're riding on for more responsive feedback on cadence and power. Ride the roads less traveled with confidence.
• Lightweight: At just 9 grams, the Powermeter Precision 3 weighs about the same as a sip from your water bottle. Our goal is to help you get faster, not slow you down.
• 3-year warranty: A lot can happen in 3 years. You probably won't need to use it, but it's reassuring to know that all 4iiii power sensors come with a 3-year warranty.

Power sensor details

• Crank model: Shimano Dura-Ace 9200, left-hand crank.
• Accuracy: +/- 1%.
• Battery type: CR2032.
• Battery life: up to 800 h.
• Water resistance: IPx7.
• Speed range: 30 - 170 rpm.
• Power range: 0 - 4000 W.
• Height: 5.5 mm.
• Weight: 9 g.
• Operating temperature: 0 - 50°C.
• Communication protocol: ANT+, Bluetooth.

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