• Панель расширения Fanvil EM50 Color-screen Expansion Module 4.3” main color display The physical DSS keys on each page with dual-color LED Five Expansion Modules at Most 300 Additional Buttons at Most

Панель расширения Fanvil EM50 Color-screen Expansion Module 4.3” main color display The physical DSS keys on each page with dual-color LED Five Expansion Modules at Most 300 Additional Buttons at Most