Which type of tank gauge is capable of testing a tank for leaks?

A magnetostrictive probe is capable of testing a tank for leaks due to its advanced technology that allows for precise measurement of liquid levels as well as identifying any anomalies that may indicate leaks. This type of gauge operates using the principle of magnetostrictive displacement, where a magnetic field is created along the probe, and a float with a magnet travels along the probe's length.

When the float's magnet interacts with the magnetic field, it sends a signal that identifies the liquid level. Additionally, because the probe continuously monitors the level and can communicate changes in volume accurately, it is able to detect rapid fluctuations that may suggest a leak. This capability makes magnetostrictive probes particularly useful for applications requiring high accuracy and reliability in level measurement and leak detection.

In comparison, the other types of gauges lack this sophisticated leak-testing capability. Manual gauges, while useful for reading levels, do not provide any immediate or continuous monitoring for leaks. Mechanical float gauges also primarily focus on level measurement without the means to detect leaks. Pneumatic probes utilize pressure and air to detect level changes, but they are not designed to monitor for liquid leaks as effectively as magnetostrictive probes.