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This Voltage Tester from Ideal is an essential tool for electricians and homeowners alike to safely test voltages ranging from 100 VAC/VDC up to 600 VAC/VDC, with a wide range of applications including circuit breaker testing, appliance troubleshooting, and wiring verification. The LR44 power supply ensures ease of use, while the shielded probe tips and test leads provide precision accuracy. With its CAT III 600 V rating, UL listed certifications, and ability to withstand hazardous materials, this voltage tester is safe for all electrical applications. Built to last and backed by Ideal's quality craftsmanship, the Voltage Tester helps prevent electrical accidents and ensures that circuits are operating at optimal efficiency.