... --Anti-clamp function to make the mechanism more safe. --Door will be able to working about 3 hours or 200times ... or function keypad: always open, half open, exit only, lock, normal open. --The half open situation can be adjusted, ... 3 open, 1/4 open, and so on. --The door's working time can be adjusted, 3 functions: always ... keypad, security sensor, fire alarm, and son on. automatic glass sliding door