Extension module for c25, i25, p25 and v25 Extension module for the x25 indoor cameras (mounted on the back) For connecting external sensors (e.g. door and window contacts) and switching external devices (e.g. relays with lamps and motors) https://elecena.pl/product/24603818/mx-opt-io3-int-extension-module-external-sensors 2023-12-08 https://elecena.pl/product/24603818/mx-opt-io3-int-extension-module-external-sensors 2025-06-22