Slave presence detector to extend the detection range of master presence detectors. Detection range (at 3 m installation height): circular: Sitting people: up to Ø 10 m, walking people: up to Ø 12 m. Installation height 23 mm. Ceiling installation via integrated spring clip. Anti-twist protection via additional quick-release clamp. Monitoring density: 72 sectors with 640 switching segments. Suitable for suspended ceilings with a panel thickness of 9 to 25 mm. Installation hole size: Ø 68 mm. For physical reasons, the detection range is smaller when approaching from the center. Recommendation: HaloX® 100 from Kaiser (item no. 1281-00) with corresponding cover (1281-01 or 1281-61 for exposed concrete) or IBTronic H120-68 from Spelsberg