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      Can I fit third-party Current Transformers to an Auditor?

      This article addresses third-party Current Transformer (CT) use on the Wattwatchers Auditor 6M, and 6W series.

      To ensure the best performance from Wattwatchers Auditors: Do not fit third-party CT's Use Wattwatchers-supplied CT clamps only.

      Warning: Fitting billing or third-party CT's to an Auditor can cause inaccurate readings and damage the hardware. The Warranty of an Auditor is void if third-party CTs, or CTs of the incorrect specification, are fitted to an Auditor.

      Wattwatchers Auditors are supplied with quality split-core CT's that have been tested with the Auditor to make measurements with Class 1 (1%) accuracy. 

      Wattwatchers CT's are an unusual specification, and so it is likely that any other CT's you may have on hand will be incorrect types.