Inert Electronic Time Delay (Minutes)

The X-ray correct, inert, Electronic Time Delay (Minutes) firing circuit contains all of the necessary components of an improvised explosive device (IED). The circuit is fully functional and will demonstrate that the firing switch has been activated by emitting an audible tone or illuminating  the LED in the blasting cap. The circuit board contains an X-ray correct battery, wire, switch, detonator, and inert explosive.

Powered by a 9-volt battery, this IED circuit would be activated when the digital timer counts down to zero. The black powder simulant is engineered to have the same density and effective atomic number (Zeff) as the real explosive threat.