LiveLink sensor unit with integrated PIR presence sensor and light sensor for connection to a LiveLink control unit, for daylight-dependent control and high-resolution presence detection. Connection and electrical supply via the DALI interface of the LiveLink control unit. Constant light control with switch-off function when there is sufficient daylight. Passive infrared presence sensor, with 4 digital pyro sensors and 4800 switching zones, with adjustable switch-off delay time, optionally in automatic mode (automatic on, automatic off) or semi-automatic mode (automatic off, manual on). Special IQ mode for automatically adjusting the follow-up time to the use of the room. Continuously scalable range setting enables highly precise planning. Temperature range: -25 °C - +55 °C. 4 digital pyro sensors and 4800 switching zones ensure the highest detection quality. A presence area of 64 m2 enables the detection of the smallest movements. Square detection, presence detection squares max. 8 mx 8 m (64 m2) / radial max. 8 mx 8 m (64 m2) / tangential max. 20 mx 20 m (400 m2) at a recommended installation height of 2.8 m, permissible installation height 2.5 m to 10 m. Protection class IP20. Sensor suitable for recessed ceiling installation in conjunction with standard cavity wall boxes. With separate accessories also suitable for surface-mounted ceiling installation. Electrical supply via the DALI interface of the LiveLink control unit. Number of occupied DALI participants: 4. No additional mains connection required. Commissioning in conjunction with the LiveLink control unit via the LiveLink app with the help of a graphical user interface. Adjustable parameters: setpoint for constant light control, switch-off delay time, semi-/fully automatic, activation of IQ mode, range test. Range setting of the sensor via potentiometer on the sensor. DALI 2 certified product.