Polar T31 Heart Rate Monitor Transmitter NO chest strap

Description

This is a USED Polar T31 Heart Rate Monitor Transmitter.
It has a sealed battery so you can’t replace it. We test each one so it is working, I just can’t guess what the battery life is.
The units in this listing were used by a community health center fitness class
NO elastic chest strap is included. We simply don’t have any to pair with the ones in this lot
All the units in this listing are tested and working
Just keep in mind that this style detects the heart rate based on electrical current, so it needs good contact to the skin. When you first put it on with dry skin it will take a little bit to detect your heart rate. Once a little perspiration builds under the strap it will pick it up the signal. Manufacturer recommended wetting the electrode contacts before putting it on.
The battery in the watch is replaceable, but the strap battery is not replaceable.we test each unit so it’s working when we ship.