GB Locking Systems - The home of Access Control! Specialists in the specification and supply of access control and door automation products to the trade.

Ulydor is our market leading Modular Door Phone System. It can be programmed to dial any number or hunt group at the push of a button when connected to either a PBX telephone system or via a GSM gateway and with its 2 built-in relays can be used to remotely open doors, gates, control cameras, lights etc.