CatEye 160-2390N Digital Heart Rate Sensor Kit, 2.4 GHz, Cycon, Bicycle
CATEYE OHR-31 Optical Heart Rate Sensor – Bluetooth/ANT+, USB Rechargeable Armband HR Monitor for Road, MTB & Gravel Cycling, 24 Hour Battery Life, IPX7 Waterproof, Fitness/Smartphone App Compatible
