CatEye – 4iiii Precision Power Meter


PRO-LEVEL ACCURACY: Our 4iiii power meters are the most accurate power meters in the world, providing data accurate within a 1% error margin.
GO THE DISTANCE: The 4iiii won’t stop until you do, providing over 100 hours of battery life.
SIMPLE AND MODERN: Your CatEye computer is compatible with ANT+ and Bluetooth head units, smartphones, and 4iiii products. Use the 4iiii app for hassle-free set up and updates.

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