... can be adjusted accordingly2. Time:5 different choices for time-setting ,3 min,6min,9min,12min , ... accumulated rotating time:it can display that how many times it has been rotated5.Displaying ... start rotating automatically7.Warning function:if the motor auto-stop fro about 6 second,the ... for restarting.If the alarm is not released in one minute,the motor will stop automatiocally. Useful training for ...