Where greater range or installation flexibility is required, the DD600 series offer 360° protection with 18 curtains of 10 m radius and with mounting heights up to 5.0 m. UTC's unique range controlled radar avoids false alarms related to movement outside the detection pattern. Fully programmable with electronic selection of either 180° or 360° coverage patterns, bi-curtain processing and memory control. DD600 Duals are ideal for challenging security environments.