With the Facom 701BPB safety tester, you quickly and reliably verify the presence or absence of voltage across electrical installations. Measuring from 12 V to 600 V with a cat III 600 V safety rating, it gives you complete certainty before starting work on control cabinets or distribution boards. The built-in acoustic continuity test and clear indicators allow you to locate wiring faults effortlessly without switching tools. In addition, the dedicated 30 mA residual current test lets you verify that differential circuit breakers trip correctly to ensure total circuit protection.