The JUNG LS 4294 1ST is a universal 4-button KNX touch module (Tastsensor Module Universal, 4-gang) from the LS series. It supports KNX Data Secure (requires ETS 5.7.7 or ETS 6.1.0/6.3.0 for full Data Secure features) and offers capabilities for connection, lighting control, shading control, as well as scene recall/store and key locking. It includes an integrated temperature sensor (supports external temperature sensors via communication objects), a status LED (two red LEDs per button area), and a blue orientation/programming LED.

The module is installed in a recess DIN 49073 enclosure, compatible with 55 mm switch frames, powered by the KNX bus (DC 21–32 V SELV), has class III protection, IP2X, and supports extension via an extension module Tastsensor (series 409..TSEM). Firmware updates are supported through the ETS Service App.