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As part of our commitment to support you, IET provides free training to new installation companies and technical support thereafter. Delivery times are all important so IET maintains high stock levels on its products, with on-time delivery over 97%. Order by midday and we will despatch that afternoon.

The further pages in this section contain technical literature; manuals and wiring diagrams. These pages are for our approved installers and require a customer password. If you do not have a password please contact us and we will be happy to help.

IET is known for producing durable products giving a low cost of ownership. Such is our reputation that IET products have been made under licence by others. The Excelsior controller is one such, produced for many years by a widely known company. Twenty years on we still support these units so please call us if you need help with a SiteGuard system, Excelsior access control unit or Domain software.

IET can also support you with other products designed by us including the Inigo IG200 and IG400 range of stand alone access controllers and the original Tower controllers which were 6volt operation, known either as T4000 or T8000 units.

EngineerPlease note: The T4000 or T8000 units can be identified by the fact their cases are hinged and typically you will find the separate power supply unit in a matt black case located nearby as shown left.