Which device carries out electrical safety tests such as ground continuity and line voltage?

• A. Digital Multimeter
• B. Electrical Safety Analyzer
• C. Thermal Camera
• D. Oxygen Sensor

Answer: (B)

Electrical safety testing requires a device that can apply test voltages and accurately measure safety-relevant parameters like grounding integrity and insulation withstand. An Electrical Safety Analyzer is specifically designed for this purpose, capable of performing ground continuity tests to verify a solid earth path and line voltage (hipot) tests to ensure insulation and leakage stay within safety limits, often with automated pass/fail criteria and complete test documentation. A digital multimeter can check basic continuity and measure voltage, but it isn’t built to carry out the full suite of safety tests or to simulate the higher voltages and leakage measurements required by safety standards. A thermal camera only detects surface temperatures and isn’t used for electrical safety testing, while an oxygen sensor measures gas concentrations and has no role in evaluating electrical safety.