The Amprobe AMB-25 insulation resistance tester offers testing of wires, cables, transformers and motors. Insulation resistance testing can be done across 250, 500 and 1,000 VDC test voltages. Additional features of the AMB-25 tester includes button lock for Dielectric Absorption Ratio testing, a sensitive ohmmeter for checking resistance of motor windings and an internal memory capable of storing up to nine readings.
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