What is the purpose of a continuity tester?

The purpose of a continuity tester is to test a cable or wire for electricity by determining if there is a complete electrical path. When using a continuity tester, it sends a small current through the circuit, and if the circuit is complete, the tester will indicate this, typically through a light or a sound. This helps in identifying whether a wire is functional, whether there are any breaks in the continuity, or if a connection is properly established. This tool is essential for electricians and roofers who may need to troubleshoot wiring issues on a job, ensuring that electrical systems are operating correctly and safely.

In contrast, measuring voltage requires a different tool, such as a multimeter, while checking insulation integrity involves assessing the resistance of the insulation rather than continuity. Confirming the structural stability of beams involves structural engineering assessments unrelated to electrical testing. Thus, the specific function of a continuity tester aligns directly with testing wires for electrical conductivity.