Motion detector sensor with ambient light measurement for automatic switching of loads based on movement and brightness. Push-button function available at any time. Designed for detection with animal tracks. When combined with a flex dimmer insert, it offers a dimming function for lighting and optional light value storage. Features an activatable switch-off pre-warning for staircase operation and is compatible with all flex inserts. Adjustment elements are located on the rear. The detection area can be extended through a master/slave combination. Additional switch-on/switch-off options are available via push-button input on the flush-mounted insert. Includes permanent light/permanent off function and detection display in test mode. Monitoring density includes 14 sectors with 56 switching segments. Switch-off delay is adjustable from approximately 10 seconds to 30 minutes or a short-time pulse of 1 second. Suitable for relay insert flex, 1-fold, 64811 U; e-contact insert flex, 1-fold, 64814 U; relay insert flex, 2-gang, 64821 U; LED touch dimmer insert flex, 1-gang, 64851 U; and extension insert flex, 64891 U. Installation height is 22 mm. Please order the corresponding flush-mounted insert separately. The range specifications refer to an ambient temperature of 21 °C.