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1800 458 775


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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.

Phone Line Protection

LDU has a range of products to protect your phone system whether it is a single phone system or a full Krone block/rack mounted system. ADSL/ADSL2/ADSL2 Plus

Krone Block LSA Protectors


Telephone Line Protector - TLP-K10

Telephone Line Protector - TLPVHS-K10-72A