OPTEX Reaction microwave sensors are specially designed to increase efficiency on opening all types of automatic doors. The OPTEX microwaves provide fast detection for all automatic door installations and particularly for applications with highspeed entries. The Reaction series is the most flexible line of microwave activation sensors available today.Detection Area The OPTEX microwave series offers a narrow or wide detection area that makes it suitable for all types of installations. The narrow setting is easy to set by just clicking the narrow lens on to the radar module. By turning the module left or right and tilting it up and down the microwave can be adjusted quickly and simply for many different applications. No external set-up device is needed.Versatility in Swing Door ActivationThe Reaction Two includes a uni-directional detection option and can be surface mounted on the door header or the ceiling. This allows the sensor to be used with center pivoted or surface applied operators and in one way traffic or two way traffic applications. An optional recessed ceiling mount is available if desired.Note: When mounting the Reaction on the swing side of the door the sensor must be located past the swing path of the door.Uni-directional settingThe Reaction Two is equipped with a dipswitch for Uni-directional or Bi-directional mode. In Bi-directional mode the sensor will detect motion either towards or away from the sensor and open the door. In Uni-directional mode the sensor will only detect when movement is towards the sensor. This allows for the door to close more quickly and saves energy by reducing airflow.Auto-Caution modeAuto Caution mode gives a higher level of sensitivity when persons linger in the detection area. In conjunction with Uni-Directional mode, it provides high safety with maximum efficiency.Ansi ComplianceWhen adjusted properly this sensor meets the current requirements for Motion Sensors in Section 8 of the ANSI/BHMA A156.10 Standard For Power Operated Pedestrian Doors.