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17th edition multifunction tester
- Continuity test - with auto null facility to zero out lead resistance
- RCD testing - trip time, trip current, ramp current
- Prospective short circuit current - direct readout of PSCC
- 100, 250, 500V - insulation measurement test voltages
- Loop Impedance - unique loop test principal will not trip any RCD
- RCD auto test - test RCD’s in auto mode without going back to the tester
- Integrated socket polarity test
- Fully protected - against damage when accidently connected across phases