Normally the microwave or infrared sensor is widely used for automatic door. But if the automatic door receives the contact signal for too long time, the controller will think that there are some problems from the signal input system. Also if the automatic door keep opening for a long time, this will damage the electrical components. As the microwave radar and infrared sensors do not know whether people close to the automatic door go inside or not, so some occasions more willing to use the switch control for automatic door.
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LEADER Automatic door systems have such switch: push button switch, handwave and foot sensor switchs, wireless press button, access keypad, metal button, fingerprint, etc.