KNX push button sensor module standard, 2-way, standard, F40 for 2-way button set, item no.: .. 402 TSA .. for 2-way button with symbols, item no.: .. 402 TSAP .. Full functionality is supported from ETS3.0d or higher. ETS product family button Product type 2-way button 1 blue LED: operating display 2 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 A blue operating LED as an orientation light and to display the programming status Integrated bus coupler Including transparent button set for operation on construction sites without designer buttons