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Benning IT 120 B Insulation Resistance Measuring Instrument Benning 044102 P The Benning IT 120B is a Digital Installation Multifuction Tester which is capable of a full range of electrical testing and can perform insulation resistance tests and loop impedance tests The loop impedance function on the Benning IT 120B is unlike most other multifunction testers as it can perform this test without the tripping of a 10mA RCD under normal conditions P P Additionally the Benning IT 120B will un
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