Dry and store the strap and connector separately, to maximize the transmitter battery lifetime. Wash the strap in a washing machine before long-term storage, and always after use in pool water with high chlorine content.
Keep the transmitter in a cool and dry place. Do not store wet in non-breathing material, such as a sports bag. Sweat and moisture keep the electrodes wet and activated. Do not expose to direct sunlight for extended periods.
Note: The Polar H1 Heart Rate Sensor was previously called the Polar Wearlink chest belt.