CatEye Optical Heart Rate Sensor - OHR-31 Inc. The Pull-up Revolution maximizes the

The Pull-up Revolution maximizes the effectiveness of every minute you spend on the bar

vertical-align:top} Size Hand Circumference (in) Small 6

Optometrist-grade polycarbonate frames

Keeps you covered from the sun to prevent sunburn

CatEye Optical Heart Rate Sensor - OHR-31 Inc. The Pull-up Revolution maximizes theThe CatEye Optical Heart Rate Sensor easily pairs to your smartphone via app. It features a heart rate range from 40 to 220 bpm. It has a low battery indicator and automatically turns off after 15 minutes of no heart rate measurement. Optical heart rate sensor compatible with Bluetooth and ANT+ Heart rate range 40 220 bpm Easy pairing via smartphone app Low battery indicator (less than 20%) Red LED blinks 3 times every 5 minutes until battery reaches