Garmin HRM-Swim Wireless Strap and Sensor - Pushys
Garmin HRM2-SS Chest Heart Rate Monitor ANT+, Mobile Phones & Gadgets, Wearables & Smart Watches on Carousell
Garmin HRM 3-SS will connect/pair with forerunner 35 but will not show heart rate (see picture) - Accessories & Sensors - Running/Multisport - Garmin Forums
Garmin HRM-DUAL Heart Rate Strap In-Depth Review | DC Rainmaker
Garmin HRM-DUAL Heart Rate Strap In-Depth Review | DC Rainmaker