The m-e modern-electronics FS 2.1 GmbH is an in-house intercom system designed as a door phone, operating on a 446 MHz radio frequency. It features a communication range of up to 2000 meters, making it suitable for extensive properties. Ideal for residential and commercial use, this intercom system facilitates convenient and secure communication. https://elecena.pl/product/28586598/m-e-fs-2-1-door-phone-radio-446mhz-2000m-black-wireless-intercom 2025-05-04 https://elecena.pl/product/28586598/m-e-fs-2-1-door-phone-radio-446mhz-2000m-black-wireless-intercom 2026-07-07