Schalk FS3 U4 (3V DC)

The Schalk FS3 U4 is a versatile 4-channel radio transmitter designed for installation in flush-mounted switch boxes. With an operating voltage of 3V DC, it allows control via various devices such as buttons, timers, or motion detectors. The transmitter offers three operating modes and operates on a radio frequency of 433.92 MHz, ensuring a range of up to 30 meters. The integrated antenna within the housing provides reliable signal transmission. The FS3 U4 is equipped with 6561 adjustable addresses, allowing for flexible use in different applications. With compact dimensions of 43x43x33 mm, it is easy to install and fits into most standard switch boxes. Made in Germany, this radio transmitter offers a reliable solution for modern switch programs and is ideal for automating lighting and control systems.