KNX push button sensor module standard, 3-way, standard, F40 for 3-way button set, item no.: .. 403 TSA .. for 2-way button with symbols, item no.: .. 402 TSAP .. for 4-way button with symbols, item no.: .. 404 TSAP .. Full functionality is supported from ETS3.0d or higher. ETS product family button Product type 3-way button 1 blue LED: operating display 3 red LEDs: status display Intended use Operating consumers, e.g. light on/off, dimming, blinds up/down, calling up and saving light scenes, etc. Installation in device box with dimensions according to DIN 49073 Product properties KNX medium: TP 256 Touch sensor functions switching, dimming, blind control, value transmitter, scene call, etc. Complete with button set One red status LED per button One blue operating LED as orientation light and to display the programming status Integrated bus coupler Including transparent button set for operation on construction sites without designer buttons