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LDU is a 100% owned Australian company with a strong reputation for supplying and installing the best high quality lightning protection systems across Australia, New Zealand and South East Asia regions. At LDU, we provide turnkey solutions for all of your lightning protection and earthing projects.

LDU Power Surge Filter Plug In

The LDU plugin SPD is ideal for the protection of all your electronic devices where mobility is a priority.


LDU have released the new generation Gatekeeper hardwired Surge Filter. The New Gatekeeper Plugin Surge Filter is on its way..


Keep watching this page.

Intellegent Surge Protection

Download our Datasheet

Download our Datasheet