Motion detector sensor with ambient light measurement. For automatic switching of consumers depending on movement and brightness. Push button function possible at any time. For detection down to the floor. For detection in stairwells. With 4 detection levels. In combination with flex dimmer insert: dimming function of the lighting and optional light value storage. With activatable switch-off warning for stairwell operation. Compatible with all flex inserts. Adjustment elements on the back. Multi-lens: Also suitable for installation heights of 2.20 m. Extension of the detection range through master/slave combination. Additional on/off option via button input on the flush-mounted insert. With continuous light/continuous off function. With detection display in test mode. Monitoring density: 54 sectors with 224 switching segments. Switch-off delay: approx. 10 s - 30 min or short-term pulse 1 s adjustable. For relay insert flex, 1-way, 64811 U. For e-contact insert flex, 1-way, 64814 U. For relay insert flex, 2-way, 64821 U. For LED touch dimmer insert flex, 1-way, 64851 U. For extension insert flex, 64891 U. Installation height: 31 mm. Please order the corresponding flush-mounted insert separately. The range information refers to an ambient temperature of 21 °C.