Surface-Mounted Box Presence detector flex lens aluminium silver

For installing an Busch-flexTronic insert in combination with an Busch-flexTronic presence detector sensor. Compatible with all Busch-flexTronic inserts. For Busch-flexTronic presence detector sensors 6853-183, 6854-183 and 6855-183. For relay insert flex, 1gang, 64811 U. For series relay insert flex, 2gang, 64821 U. For e-contact insert flex, 1gang, 64814 U. For extension insert flex, 64891 U. For LED touch dimmer insert flex, 1gang, 64851 U.