Keypad/Single Button Interface. With infrared safety sensor interface, one-key/three-key switch, infrared sensor, alarm light interface; For magnetic limit switch input, for motor line input, power input for adjusting the torque, for adjusting the closing force DIP switch for multi-function setting Learning key to program the remote control (press the learning key, then press any key on the remote control twice to add the remote control), Manufacturer: DMETE