Polar Sport Watch - Heart Monitor (bpm), Time Display, Date & Day Indicator, Data Transfer, Trainning Recorder, Water Resistant, Low Battery Indicator, Black/Silver - FT7M at TigerDirect.com
Polar Genuine Battery Kit for FT4 & FT7 with battery cover and FREE Sealing Ring : Amazon.co.uk: DIY & Tools
CR1632 Replacement Battery for FT7 Polar Training Computers - TheBatterySupplier.Com
Polar Genuine Battery Kit for FT4 & FT7 with battery cover and FREE Sealing Ring : Amazon.co.uk: DIY & Tools
Genuine Polar Battery Kit with Battery Cover for Polar FT4 and Polar | Manualzz