Comfortable textile electrodes that transmit heart rate to the Wearlink. Putting the transmitter into place is extremely simple: the + electrode is first placed under the saddlecloth, the – electrode is then fixed to the saddle girth and finally the transmitter is fixed to the saddle. The Polar Equine T54H Coded Transmitter is compatible with all Polar receivers, except W.I.N.D. receivers such as Polar RS800, RS800CX and CS600.