Characteristics Designed for athletes who want to replace their T31 Polar belt and coded transmitter.
Ease of useSlim, lightweight and fully waterproof.
CompatibilityCompatible with the whole Polar range.
Autonomy2,500 hours of use, i.e. 2 to 5 years of use. Non replaceable battery.
Chest straps - Transmitters
Product catchlineA fully waterproof coded chest strap.