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2. Counter-IED equipment - Wikipedia

   en.wikipedia.org/wiki/Counter-IED_equipment

   Counter-IED equipmentare created primarily for militaryand law enforcement. They are used for standoff detection of explosives and explosive precursor components and defeating the Improvised Explosive Devices(IEDs) devices themselves as part of a broader counter-terrorism, counter-insurgency, or law enforcement effort.

3. Earth-leakage circuit breaker - Wikipedia

   en.wikipedia.org/wiki/Earth-leakage_circuit_breaker

   An earth-leakage circuit breaker ( ELCB) is a safety device used in electrical installations with high Earth impedance to prevent shock. It detects small stray voltages on the metal enclosures of electrical equipment, and interrupts the circuit if a dangerous voltage is detected. Once widely used, more recent installations instead use residual ...

4. Residual-current device - Wikipedia

   en.wikipedia.org/wiki/Residual-current_device

   A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device that interrupts an electrical circuit when the current passing through a conductor is not equal and opposite in both directions, therefore indicating leakage current to ground or current flowing to another powered conductor.

5. Metal detector - Wikipedia

   en.wikipedia.org/wiki/Metal_detector

   A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. A metal detector consists of a control box, an adjustable shaft, and a variable-shaped pickup coil. When the coil nears metal, the control box signals its presence with a ...

6. Unearth Your Next Hobby With These Expert-Recommended Metal ...

   www.aol.com/best-metal-detectors-uncover-buried...

   Scavenge for gold, coins, and other buried treasure with these metal detectors, including models from Garrett, Nokta, and Minelab. Unearth Your Next Hobby With These Expert-Recommended Metal Detectors

7. Ground-penetrating radar - Wikipedia

   en.wikipedia.org/wiki/Ground-penetrating_radar

   Ground-penetrating radar ( GPR) is a geophysical method that uses radar pulses to image the subsurface. It is a non-intrusive method of surveying the sub-surface to investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry. [ 1] This nondestructive method uses electromagnetic radiation in the microwave band ...