Answer:
The KW4H transmitter is compatible with SEWACall nurse call receiving monitors, corridor indicator panels, and display receivers that operate on the 433.92 MHz AM frequency band.
The SEWACall KW4H is engineered to pair with SEWACall wireless display receivers, central nursing station LED/LCD consoles, and corridor light indicators tuned to 433.92 MHz using AM modulation.
For optimal wireless communication up to the rated 100-meter open-air range, receiver units should share the matching RF modulation protocol. The transmitter is powered internally by a 23A 12V battery (they are not included), allowing standalone surface mounting without external wiring to the central receiver panel.
