Motion sensor switch combination. For brightness and motion-dependent control of lighting. Push button function available at any time. Detection with animal corridor. Includes indicator LED when manual operation is required. Compatible with all flex inserts. Adjustment elements located on the back. Two dials for setting brightness switching threshold and time delay. Expansion of the detection range through master/slave combinations. Additional on/off control via push button input on the flush-mounted insert. Adjustable operating modes: Automatic mode, automatic (motion-controlled) switching on and off, switch-on automation. Adjustable operating mode: Semi-automatic, manual switching on, automatic (time and motion-controlled) switching off. With continuous light / continuous off function. Monitoring density: 9 sectors with 28 switching segments. Switch-off delay: adjustable from approx. 1 min to 10 min. For relay insert flex, single, 64811 U. For e-contact insert flex, single, 64814 U. For relay insert flex, double, 64821 U. For LED touch dimmer insert flex, single, 64851 U. For slave insert flex, 64891 U. Installation depth: 21 mm. Please order the corresponding flush-mounted insert separately. The range specifications refer to an ambient temperature of 21 °C. Busch-balance® SI, Busch-flexTronics®.