Swing Opening Door Electric,Door Closer Automatic Residential Swing Open with 2PCS Exit Buttons and 1PCS 880lbs Stainless Steel Electric Lock

[Safe]Automatically re-open door if door opener electric notices an object in the closing path, make sure safety of the people in the door way, If used for disabled access, it is recommended to install a optional motion safety scanner to extend the re-opening opening time^^[Easy Parameters Adjustment]Lots of parameters such as manually push force, locking mode, hold opening time etc can be adjusted on closing force by handheld programmer of automatic door closer^^[Durable Motor]The motor is very durable and will not burn out easily due to unstable input voltage because it adopts wide voltage technique, workable with input voltage AC100V to AC240V^^[Easy Installation&Debug]USA Technical phone support, easy installation and debug^^[Lock Door by Electric Lock]Can manually open the door after knob lock be opened, can not manually open door after knob lock is closed, the door can be locked at night if it is necessary