Feature: 1. The panel has 5 positions, 5 functions are optional, normally closed, automatic, one-way, half open, normally open. 2. The key switch is equipped with a brushed aluminum panel, which is sturdy and durable, not easy to damage, and has a long service life. 3. Easy to install and maintain, weatherproof and dustproof, suitable for all automatic doors. 4. High reliability, small size, does not take up too much space, and high practicability. 5. Professional manufacturing, superb craftsmanship and high accuracy help to provide the best performance. Specification: Item Type: Automatic Door Program Key Switch Material: AluminiumFunction: Normally closed, automatic, one-way, half open, normally open Product Size: Approx. 80x80x45mm/3.1x3.1x1.8in Application: Suitable for automatic doors How to Use: 1. Wiring, connecting to automatic door for use. 2. Adjust the knob on the panel to select one of the door opening states.. Package List: 1 x Automatic Door Program Key Switch1 x Manual