Mousetrap/solder delay. Same principle as ITA-98. However, this device uses a powerful torsion spring that can close a switch as well as fire a percussion-initiated bomb.

Electronic delayed arming, radio-controlled IED. This device is a modified command detonation bomb model which can not be detonated at the exact instant the joystick control is operated. The joystick control simply starts an electronic automatic arming sequence. This is a safety feature to prevent (or at least attempt to thwart) electronic countermeasures jamming by a scanning transmitter moving up and down the radio frequency channels. Once the firing sequence has been started by the bomber, the bomb will detonate only after the electronic arming delay has set itself; the delay is variable and is set by us at the factory to the user’s request (typically 8-10 seconds to thwart a sweep by E.C.M. equipment). Transmitter is handheld, portable, with range variable from 1/4 mile to 1 mile. Receiver uses dual servos for redundancy, contains detonator and simulated dynamite or plastic explosive, LED, and whistle.

Transceiver Initiated IED in Box - Radio-controlled command detonation IED, with dual servo motors for redundancy. Same basic unit as ITA-102, but without automatic electronic arming features. Manual arming only. In all other respects, identical to ITA-102. All batteries supplied for transmitter and receiver in both ITA-102 and ITA-103.

Temperature sensitive Rise. Demonstrates that a rise in temperature can be used to initiate an IED. Device is connected to relay and uses two power sources.

In operation, smoke or dust particles blown into the sensing chamber, cause a change in resistance. This is then translated by circuitry to output a detonating signal.