Which of the following devices can be used to ensure safe electrical measurements?

Both a clamp meter and a multimeter are essential tools used for safe electrical measurements, making this answer correct.

A clamp meter is particularly adept at measuring current without needing to make a direct connection to the circuit. This non-invasive measuring technique greatly reduces the risk of electric shock or accidental short circuits while measuring high currents. The jaws of the clamp can encircle a conductor, allowing the device to read the magnetic field generated by the current flow, which is a safe method for measurements.

On the other hand, a multimeter is a versatile device that can measure voltage, current, and resistance. When using a multimeter, particularly in its voltage and resistance settings, precautions can be taken to avoid contact with live circuits. Many modern multimeters come equipped with safety features such as fuses and overload protection, making them safer to use in various electrical applications.

In combination, these tools allow for a broad range of electrical measurements, contributing to safety by reducing the need to disrupt electrical connections directly. This comprehensive functionality of both devices is vital for ensuring that electrical measurements are taken safely and accurately.