Automatic sliding door is a good solution for bank, shopping mall, office building, hospital,and so on. Hermatic sliding door: --Anti-clamp function to make the mechanism more safe. --Door will be able to working about 3 hours or 200times(open and close) during a power cut (optional) --Five different functions with remote or function keypad: always open, half open, exit only, lock, normal open. --The half open situation can be adjusted, so it can be 1/3 open, 1/4 open, and so on. --The door's working time can be adjusted, 3 functions: always work, work 5000times, work 10000times.( only for HH130, HH150) --Good solution for accessories, for example, finger printer, remote control, push button, access keypad, security sensor, fire alarm, and so on.