The Amprobe AMB-45 insulation resistance tester tests the insulation of wires, cables, transformers and electrical motors. With selectable test voltages up to 1000 V and a rugged, durable design, the AMB-45 is both fast and easy-to-use. By including a number of features not found on similar products, the AMB-45 distinguishes itself as the most versatile product in its class.Designed for preventive and predictive maintenance testing of motors, generators, cables, and distribution transformers in industrial and commercial facilities.

Amprobe AMB-45 insulation resistance testers provides fast and accurate readings across all ranges. Results are displayed on the 70 x 46mm LCD with 60 segment analog bar indicator. The tester has an internal memory to store measurements for future reference and includes software to facilitate data download to PC for further analysis and archival storage. The AMB-45 includes a programmable timer to perform the Dielectric Absorption Ratio test. Other features include a sensitive ohmmeter for checking the resistance of motor windings and a built-in voltmeter.