Calibration Instruments

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EFO Supplies a range of Calibration Instruments. The Socket and See CB400AU is unquestionably the ultimate installation testing calibration check box. By using this calibration check box you can be assured that your test equipment is operating correctly ensuring that your certification is always accurate. The CB400AU works with all leading makes of Loop, Insulation/Continuity and RCD Testers, both multi function and also single operation.

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