If you need a new elastic strap for your Polar wireless transmitter, ours are available in various sizes, are easy to put together, and are comfortable to wear.
This strap works with the following Polar T Series Transmitters;
T31, T31-Coded, T41, T61, T34

How do I clean the transmitter and strap?

Proper care of the transmitter after use ensures longer service life for the transmitter.
Wash the transmitter regularly after use. T31, T31C, T61 transmitters should be washed with a mild soap and water solution. Dry it carefully with a soft towel after washing.
WearLink transmitter strap and connector should be rinsed with water. Never store the transmitter when it is wet, and store the strap and connector separately. Sweat and moisture can keep the electrodes wet and the transmitter activated, which shortens the battery life.
Store your Polar product in a cool and dry place. Make sure that the electrodes do not contact anything damp, such as sport towel or wet elastic strap. Do not store a wet transmitter in any kind of non-breathing material, such as a plastic bag or a sports bag.
Do not bend or stretch the transmitter. This may damage the electrodes.
Readjust the elastic strap periodically so that the transmitter fits firmly around the chest.
Only dry the transmitter with a towel. Hard-handed handling may damage the electrodes.
Keep your Polar product out of extreme cold and heat. The operating temperature is -10 °C to 50 °C/ 14 °F to 122 °F. Do not expose the Polar prodcut to direct sunlight for extended periods, such as leaving it in a car.
T31, T31C, T61 transmitters can be washed with mild soap and a gentle brush. If the electrodes appear discoloured, the transmitter needs to be washed. Do not use any alcohol or a solvent based detergent.
WearLink strap and the elastic strap of the T31, T31C and T61 should be washed regularly in a washing machine at 40 °C/104 °F or at least after every fifth use. This ensures reliable measurement and maximizes the life span of the transmitter. Use a washing pouch. Do not soak, spin-dry, iron, dry clean or bleach the strap. Do not use detergent with bleach or fabric softener. Never put the transmitter connector in the washing machine or drier!

How do I know what size I need?
The measurement for the transmitter should be taken right below the pectoral muscles, or breasts. If you are borderline between two sizes, go with the next size larger.
Polar Transmitter sizes are calculated in inches and should be based on personal comfort level. If you order the incorrect size, you can exchange just the elastic strap portion of the transmitter, or order a replacement located in the strap area of accessories.
What is I have a Pacemaker, will it interfere with a Polar Heart Rate Monitor?

A Pacemaker and the Polar Heart Rate Monitor

Persons who have a pacemaker or defibrillator use the Polar heart rate monitor at their own risk. Before starting use, we always recommend an exercise test under doctor’s supervision. The test is to ensure the safety and reliability of the simultaneous use of the pacemaker and the heart rate monitor.

The manufacturer of the defibrillator has to approve the simultaneous use of Polar Heart Rate Monitor and the defibrillator.

Technical information about radiated magnetic field of the transmitter:

Polar Non-Coded Transmitter:
Transmission frequency: 5kHz
Means of transmission: On/Off -modulation, magnetic field by means of a 5-7ms burst for each heart beat.
Polar Coded Transmitter:
Transmission frequency: 5kHz
Means of transmission: On/Off -modulation, magnetic field by means of a train of three 5ms bursts for each heart beat Time Interval Coding.

The strength of the magnetic field right next to the transmitter is 5 uT (micro tesla) and 1 nT at 1 m distance. Even in the worst case the radiated power is under 2 nW

Machine Washable
Chest Strap Sizing:
"Med (25-54 Inches)"
"Large (33-63 Inches)"
"Small (23-47 Inches)"

Polar Replacement Elastic Transmitter Strap T Series (Does not Include Transmitter)