Polar T31 Coded Chest Transmitter and Elastic Strap
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The Polar T31 Coded Transmitter is Slim, light and waterproof all while transmitting your heart rate to your wrist unit ECG (electrocardiogram) accurately.
Coding prevents cross-talk from other electrical devices and The Polar T31 Coded Transmitter delivers 2,500 hours of operation, estimated at 2-5 years of use based on exercising 10 hours a week.
The T31 coded is great for swimmers - it is fully water resistant making them the most effective exercise tools for measuring your heart rate while involved in water sport.
The T31 coded transmitter does not have a user replaceable battery, and must be entirely replaced when battery is depleted. We recommend the Polar H1 Transmitter for those looking for user replaceable batteries.
Chest Strap Sizing
- XS (18 to 25 inches)
- Small (23 to 47 inches)
- Medium (25 to 54 inches)
- Large (33 to 63 inches)