OHR-31 Optical Heart Rate Sensor

Excellent!

Great product! I like the optical technology and arm location. I prefer it over an "electrical" sensor and chest strap. Paired easily with ZWIFT, my Merach rower and the Cateye app. Recommend!

I recently installed the Cateye Air GPS and Heart Rate sensor. The good: easy installation, trouble-free setup, really like the lack of sensors on the bike. The HRS seems accurate and smooth. The only area for improvement would be a "scan" function that rotates through the different measurement parameter. Bottom line - I'd buy this unit again.