Never pay for keyfobs again!  Use your mobile free... 

London GSM specialise in mobile phone based security equipment. One of the most recent advancements in security technology is the ability to control virtually anything from your mobile phone.

It's a very simple concept. We fit a small device into your gate or door controls. The device contains a SIM card. Authorised Users are loaded into the device by sending simple text messages.

When an Authorised User (up to 200) calls the SIM card in the device, it recognises the incoming number and activates the gate or door just like a traditional keyfob. There are absolutely no call charges whatsoever as the device never actually answers the call.

The benefit of this system is you can add or delete Users as you wish at no cost. It's as simple as speed-dialing (press and hold 1 preset digit on you phone keypad) a preset number (the SIM card in our device) and your mobile phone will open the entrance within a few seconds just like a keyfob.