HOMCOM A90-193 Assembly Instruction Manual page 8

Most Important
After all above steps finished, the most important is to make sure all the bolts and
parts are securely fixed before you are riding on the bike.
COMPUTER OPERATING INSTRUCTIONS
SCAN Scans all functions – TIME, SPEED, DISTANCE, TOTAL DIST, PULSE, CALORIES
TIME Displays work out time lapse while exercising
SPEED Displays the current speed
DISTANCE Displays the distance while exercising
RMP Show the number of rotations per minute
PULSE Displays your heart rate
CALORIES Displays the calories you have burned