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For more than twenty years Castline Systems have been providing electrical and mechanical software to the building industry with a comprehensive range of Windows, iPad and Apple Mac software including programs for inspection and testing (FormFill), circuit design and cable evaluation (CableCalc), building heat loss calculations (HeatCalc).

Certification software has recently become available for the iPad, iPhone, Kindle and all Android devices, most of these apps are free and unrestricted.

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