Polar T31 coded transmitter

The Tunturi Interval Timer and stopwatch enables you to quickly and effectively set your workout. Perfect for sports like CrossFit, Tabata or interval workouts. It is possible to set the interval timer as desired. For example, it is possible to set the time of a workout, you can do 2 to 99 repetitions, you can set 2 intervals (rest and workout) and the timer runs up to 99 minutes and 59 seconds. Besides these possibilities the timer can also be used as stopwatch during the workout. The timer will give an alarm or vibrate when a certain repetition is finished. The timer works on 1 AAA battery of 1.5V.