(Sigma BC 301 Computor. Circa Late 1990's Sigma Product. )). Can switch KM/H, MPH.
Sigma Sport ANT+/Bluetooth Smart Heart Rate Transmitter Sigma Rox 11.0
Sigma PC 9 Woman's Sports Training Manager Watch - Select Colour:
Sigma Sport Bike Service Accessory ANT Bluetooth Smart Heart Rate Transmitter R1
Internet Returns: Sigma PC 9 Woman's Sports Training Manager Watch
Sigma RC1209 HRM Red No
Sigma Sports ROX 2.0 Cycle Computer GPS inc. Bar Mount SG-002-I12
