Method of operation:
On the auto-door switch at the entrance of the toilet there are two buttons 'open' and 'close'. Before entering the toilet, press the button 'open' and the voice ' door opening' can be heard ,  the auto-door then opens. 
Having entered the toilet, press button 'close', and the voice  'door closing' can be heard , then the auto-door closes. The indication light outside will be on, showing 'occupied'. If the external button 'open' or 'close'is pressed at this time, a voice of 'occupied' can be heard, and the auto-door doesn't open. The only way ,the auto-door can be opened from outside at this time is by using the key or the emergency remote control. 
Note: 
1. After unlocking the door with the key(or the remote control) it will be necessary to relock the door with the key or the remote control so the system reverts to its normal state.
2. When the access control system is powered up, the unit will 'beep' three times,  it will then start the initialization setup automatically.
Adjustment:
1. The indicator voice volume is adjustable. 
2.Door hold open times can be programmed as required.

Overall size:Main controler:                            143mm(L)*58mm(w)*40mm(H)
                      Inside  button(outside button) : 160mm(L)*120mm(W)*15mm(H)mm