Polar H10 Heart Rate Sensor Pro Chest Strap, Black, Medium/2X-Large

The Polar H10 heart rate sensor is accurate and comfortable and has measuring electronics, along with algorithms in the heart rate sensor. Compatible with Go Pro hero 4 and 5, view your heart rate on your Go Pro recordings. The H10 has an hours worth of memory to record data without the need of a wrist unit. The Pro chest strap has one extra electrode to prevent interference. Works with gym equ...