8 x Apartment 3G GSM Intercoms with Electric Door Latch Fail Secure

3G GSM Intercom with Electronic Door Lock

UltraCom3 Three Apartment Wireless Intercom - Ultra Secure EU

3G GSM Intercom with Electronic Door Lock

8 x Apartment 3G GSM Intercoms with Electric Door Latch Fail Safe

Wired Video Intercom System for Villa Home Security + Electric

Wireless Gate & Door Intercom (UltraCom2 No keypad) Silver & Black

3G GSM Intercom with Electronic Door Lock

UltraCOM 4G GSM Gate Intercom, GSM 4G Door Intercom

K6 System 4G GSM Access Control Wireless Apartment Intercom/Gate