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Metal Detector Initiated IEDs

An effective way of boobytrapping an IED, is to build in a metal detection search coil and circuit, wired back to an electric detonator and explosive charge.

A metal detector is an electronic device containing one or more wire coils in a frame, designed to produce a magnetic field when energized. The detection circuitry is adjusted or tuned to a normal condition, and stabilizes.

When brought close to a metal object, even if it is buried, this disturbs the magnetic field of the search coils and the associated circuitry detects this disturbance and goes into alarm mode, alerting the operator usually through a combination of audible, visual and vibratory signals. Any of these signals can be captured by the bomb builder, and diverted to trigger an electric detonator.

If a security screener or bomb technician uses a metal detector to scan a container or suspect device containing this arrangement, the IED will detonate when the search coil magnetic field approaches. If the operator has the metal detector search coil mounted on a robot vehicle, the detonation will probably destroy the robot. If the detection unit is hand-held, the operator will likely be seriously injured or killed by the blast.

Securesearch manufactures several such inert, but functional IED training aids, that are very useful for countermeasures development.

Metal Detector Initiated IEDs

ANTI-METAL DETECTOR IN A CARRYING CASE
Order Sku: ITA-BC-1-23
This type of device has been used to try to defeat metal detectors by initiating on the approach of the search coil magnetic force field.

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METAL PROXIMITY SWITCH
Order Sku: ITA-BC-2-20
Metal proximity switch (modified commercial metal detector in plastic toolbox), with anti-lift microswitch, temperature-sensitive switch (anti-cryogenics).

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TEMPERATURE-SENSITIVE THERMOCOUPLE SWITCH WITH CIRCUIT BOARD
Order Sku: ITA-BC-2-24
Temperature-sensitive thermocouple switch with circuit board (anti-cryogentics), crush chemical-instigated (hypergolic) initiator, trembler anti-vibration switch, mechanical percussion striker switch with primer.

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Metal proximity IED model
Order Sku: ITAV123
Metal proximity IED model using commercial metal detector

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