The WearLink combines superior Polar technology with a new fabric design and has a user-replaceable battery and coded transmission, eliminating cross talk from other HRMs. M-XXL fits chest sizes 27" to 60". This measurement includes the WearLink connector. *Please note - an uncoded receiver (watch) will not receive the benefit of coded transmission.

• Electrode engineered into fabric strap - Coded technology which eliminates interference from other HRM users
• Changeable battery - approximate battery life of 2 years
• Machine wasable and replaceable fabric strap
• Water resistant to 30m
• Compatible with all Polar Heart Rate Monitors except Polar RS800 and RS800sd
• Supplied with Polar AXN500, AXN700, CS200, CS200cad, F11, F55, F92ti, RS200, RS200sd, RS400, RS400sd, M31/M32, M61/M62, S210, S410, S610i, S625X, S725, S725X, S810i