If you are looking for a security device to work via a sim card then a site survey is something you should consider, at Entrytrch we can come to your site or the location you are thinking of using a 3/4G device and we can tell you the best network to use, the direction of the transmitter and suggest the best location for the antenna if the device uses an external one.  Once we have completed our 3/4G signal we will send you a file via email showing all the network data. 

EntryTech Security Installer Ltd

Business hours 01204 257999

Out of hours 07729205291 

Company Number 11326557

Vat 294 4725 69

Registered in England & Wales

Formerly traded as a Sole Trader under the name EntryTech Security Installer

Contact form

28 Conway Avenue,




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