This detector for high ceilings is a DALI 2 secondary and BMS detector that extends the detection range of a DALI master detector or can be part of a BMS system. It is designed for surface mounting and has an IP54 protection rating. When the detector is used as a secondary detector and is connected to a DALI bus controlled by a DALI master detector, it starts communicating with this master detector without any further commissioning. When connected to the DALI bus of a BMS system, the detector must be commissioned using the BMS software. The detector settings can be changed using the Niko Detector Tool app and the 2-way Bluetooth® communication between smartphone and detector or using the BMS software. Color: white. Compatible Master Detectors: 353 650321, 353 651321, 353 651421, 353 652321, 353 652421, 353 750321, 353 751321, 353 751421, 353 752321, 353 752421, 353 852411