Check the listing for details. Belimo Andover Controls B3885 VAV Controller w/ Actuator Transducer Transmitter. Condition: New – Open box. Listed at 82.50 USD. This Andover Controls B3885 VAV Controller With Actuator Transducer Transmitter is a reliable solution for industrial automation and motion control needs. The brand is known for its quality products, and this item is no exception. It is perfect for those in the HVAC industry and is designed to provide precise control over your system's airflow and temperature. With its advanced features, this VAV controller is an excellent choice for anyone looking to upgrade their HVAC system. It is easy to install and operates smoothly, ensuring that your system runs efficiently and effectively. Whether you're looking to control the airflow in your home or office, this VAV controller is an excellent investment.