Hey Amanda, great choice with the Edwards EST SIGA-SDH! To install the Edwards EST SIGA-SDH, begin by ensuring the duct is clean and free of any obstructions. Mount the housing securely to the duct using the provided mounting brackets. Connect the duct sampling tube to the housing inlet and outlet ports, making sure there are no kinks or bends that could affect airflow. Finally, wire the detector to the control panel following the manufacturer’s instructions, ensuring proper polarity and addressing if required. Perform a functional test to verify proper operation.