Polar OH1 Optic Pulse Sensor - Black

You can use the Polar optical sensor individually for heart rate measurement or pair it with various fitness apps, sports watches and smartwatches via Bluetooth and ANT+.

• Pulse measurement using six optical LEDs
• 4 MB internal memory
• store up to 200 hours of training data
• Includes clip for attaching to swimming goggles
• constant update via WLAN
• waterproof up to 30 m
• Lithium polymer battery with 45 mAh
• up to 12 hours battery life
• charging via USB adapter
• ANT+, Bluetooth connectivity