Designed to work as a ANT+, Bluetooth armband replacement is perfectly compatible with most popular heart rate monitor and sensor such as Orange
3Pcs Replacement Heart Rate Monitor Armband Straps Compatible with OTF, OTF Burn, Orange Theory Fitness, OT Beat Heart Rate Sensor
OrangeTheory Beat Burn Heart Rate Monitor - Exercise
OTF Heart Rate Monitors and Technology
4Pcs Heart Rate Monitor Replacement Armband Strap Compatible with OTF, OTF Burn, Orange Theory Fitness, OT Beat Heart Rate Sensor, Heart Rate Monitors - Canada
ORANGE THEORY FITNESS Flex Heart Rate Monitor (with charger) $6.99 - PicClick
Coach Fury
Orangetheory launches fitness tracker that connects to your Apple Watch - CNET
Costco] Orange Theory Fitness Gift Card $129.99 (for 5 training sessions + 1 heart rate monitor) - RedFlagDeals.com Forums
OTbeat Link FAQ