Colours: Red, Blue, Black, Orange or Green

Rounds 3 minutes;  Rest period 1 minute;

Rounds 1 – 9 minutes;  Rest 10 – 90 seconds;  Intervals can be set 0 – 60 seconds (in 5 second steps).

Rounds:  2, 3 or 4 minutes;  Rest periods: 15, 30, 45 or 60 seconds;  Intervals can be set for 0, 15, 30, or 45 seconds;

Rounds 2 or 3 minutes;  Rest periodd 30 or 60 seconds;  corresponding green, red and 30-second work whistle and yellow light;