Consequently some countries, such as the USA, Canada and Australia classify the more sensitive magnetometers as military technology, and control their distribution.

With a sensitive magnetometer all that is needed is a few turns of enamelled wire reasonably carefully wound onto a piece of plastic drainpipe.

This setup can form the basis for extremely sensitive magnetometers, known as SQUIDs, as well as many other devices.

The Nokia N9 has a slightly more sensitive magnetometer and ambient light sensor (ALS)

Different materials below the ground can cause local disturbances in the Earth's magnetic field that are detectable with sensitive magnetometers.

Quantum sensor is also a term used in other settings where entangled quantum systems are exploited to make better atomic clocks or more sensitive magnetometers.

Using an extremely sensitive magnetometer, researchers at the Massachusetts Institute of Technology have detected the very weak magnetic fields generated by some forms of corrosion.

This field is detected by a highly sensitive magnetometer, acting as a null detector.

SQUIDs are the world's most sensitive magnetometers, capable of measuring a single magnetic flux quantum.

SQUID is a very sensitive magnetometer.