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Commercial Electric Digital Multimeter Mas830b User Manual | PREMIUM · 2025 |

Always disconnect test leads from the circuit before changing the rotary switch position. Never measure resistance on a live circuit. Do not exceed 600V DC/AC between any terminal and earth ground.

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Always disconnect test leads from the circuit before changing the rotary switch position. Never measure resistance on a live circuit. Do not exceed 600V DC/AC between any terminal and earth ground.