Precision instruments

Ultratest offer a range of precision testing instruments for a variety of different applications, including the testing of transformers, ohmmeters for accurately measuring resistance, resistance boxes for checking and calibrating insulation testers as well as models for resistance thermometer simulation and other applications and the more traditional Kelvin/Wheatstone Bridges for measuring resistance.

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High Resistance Boxes, HR20/21
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Dual Channel Transformer Micro Ohmmeter, TT96C
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Decade Resistance Boxes ZX Range