Sanwa Analog Insulation Tester DM509S Resistance Tester 500V AC Push Thru Switch Socket Safety is a priority with

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Sanwa Analog Insulation Tester DM509S Resistance Tester 500V AC Push Thru Switch Socket Safety is a priority withThe Sanwa Insulation Resistance Tester DM509S is a trusted tool for professionals in the electrical trade. It measures insulation resistance up to 500VAC. This Insulation Resistance Tester DM509S helps detect issues before they become big problems. It is easy to use and easy to read even in low light. The clear analog display gives fast and accurate results every time. This tester can measure AC voltage, DC voltage, and insulation resistance. It is