Giant Power Pro Power Meter Ultegra 50x34 172.5mm

6 built-in axis gyro sensors inside both crank arm sensors provide vibration compensation by filtering ground surge impacts when riding on uneven surfaces
Giant-exclusive algorithm and auto temperature calibration ensure precise and stable data output to +/-2 % accuracy free of environmental distractions
Accelerometer allows magnet-free measurement
High-capacity lithium battery delivers up to 100 hours of riding on a single charge
IPX7 waterproof
Integrated magnetic rechargeable design protects device from water and dust ingress
LED indicator displays battery level and alerts recharge when power gets below 30%
Bluetooth® Smart/ANT+ compatible for broad compatibility, easy calibration and firmware updates.
2 year global warranty