What device is utilized for detecting shorts in a circuit?

In a circuit, an ohmmeter is specifically designed to measure resistance. When detecting shorts, the key characteristic is that a short circuit typically manifests as a very low or zero resistance between two points in the circuit. By using an ohmmeter to measure the resistance between these points, a technician can identify if a short exists. If the ohmmeter displays a reading of zero or close to zero ohms, it indicates that the two points are shorted together.

While a voltmeter measures voltage in a circuit and can indicate issues indirectly, and a continuity tester is meant to check for current flow in closed circuits, it's the ohmmeter that provides direct resistance readings which are essential for confirming a short. A frequency counter is not relevant to detecting shorts, as it measures the frequency of signals rather than resistance or continuity.