"Efficiently monitor your heart rate with this Tunturi heart rate transmitter, simply wet the elctrodes on the strap, wrap it around your chest with the elasticated strap and then watch your fitness machine provide you with an accurate heart rate reading on the display as long as it has a 5Khz frequency. Monitoring your heart rate is useful for specific targeted training benefits as different heart rate parameters can either target fat loss or increase fitness levels depending on your goals. Product Features: Chest Transmitter with 5kHz sender with a reach of 120cm. Usable on most fitness equipment. Adjustable elasticated chest strap can accommodate almost all chest sizes. Provides consistently accurate reading. Comes with both transmitter and elasticated strap included. Works seamlessly with any Tunturi or Bremshey fitness machine."