B&K Precision 307 1000 V ANALOG MEGOHMMETER
These insulation testers are intended primarily for periodic testing of industrial motors, transformers, electrical wiring, and cable insulation for signs of deterioration. Low read-ings may indicate impending failure and permit replacement during routine maintenance rather than risking production downtime. Also useful for safety testing of TV sets and appli-ances to assure no hazardous leakage current. The voltage and resistance ratings for insulation testing are often specified for the product to be tested