KNX Touch Sensor Module Universal, 2-fold for 2-fold switch set, Item No.: 402 TSA for 2-fold button with symbols, Item No.: 402 TSAP, expandable with a touch sensor extension module Item No.: 409 TSEM. Adapter frames included: Item No. LS 4 AR for the LS series (pre-assembled) and Item No. CD 4 AR for the CD series. Series AS/A without adapter frame. Full functionality is supported from ETS 3.0d or higher. ETS product family: Push buttons, Product type: 2-fold push button. 1 blue LED: Operating indicator, 4 red LEDs: Status indicator. Main features: Connections and interfaces, Transmission technology: Wired. Built-in Ethernet connection: No, Wi-Fi: No. Design: Product color Black, Gray. Built-in display: No. Control: Buttons, LED indicators: Yes. Power: Input voltage 21 - 32 V. Delivery includes: Temperature sensor: Yes, Operating temperature sensor 5 - 45 °C.