The Smartwares SH4-99653 is a wireless switch set operating at FSK 433 MHz. Manufactured by Smartwares, it enables remote control of electrical devices. Ideal for home automation, it simplifies controlling appliances from a distance. https://elecena.pl/product/28705999/smartwares-sh4-99653-wireless-switch-set-2-wall-sockets-outdoor-use 2025-05-16 https://elecena.pl/product/28705999/smartwares-sh4-99653-wireless-switch-set-2-wall-sockets-outdoor-use 2026-09-11