Works with all electronics access control keypads, door phones with access control keypads, and PBX door phones, this door lock switch is perfectly customized for you. This door lock switch is the largest available momentary rocker switch in its class. This electric door switch is designed to activate an electric strike from a receptionist's desk or mount inside next to the door for quick emergency exit. With this power door switch, the first door opens and the second door shuts correspondingly. Moreover, made of high quality material, this door lock switch is durable for a long time use. With the simple and practical design, this button switch is easy and convenient for you to operate. Good choice for you.