The OAC-3000S-UI features a universal insertion mount probe and modulates an MP-Bus damper actuator to maintain precise outdoor airflow. It can operate on a schedule or combine the schedule with a binary input trigger, typically provided by a thermostat or 24 VAC control signal. With advanced logic and airflow measurement, it optimizes CO2-DCV by adjusting airflow between user-defined limits to maintain a fixed CO2 level or variable setpoint based on occupancy. Fully compatible with MS/TP BACnet systems, the OAC-3000S supports read/write privileges and offers an optional RS-485 signal isolator for isolated networks.