Each module includes two containers: a tamper and a projectile, which fit together, sandwiching the explosive charge. Endcaps hold the elements together and allow separate modules to be joined side-by-side or end-to-end according to the size and shape of the target.

Deployable by hand or ROV, a single module can disrupt a small wooden, plastic, or metal box with a volume of up to 30 litres.
DemiMod™ is effective at removing concrete cladding from suspected IEDs, which include projectiles cast in concrete, and it has successfully disrupted IEDs placed inside animal carcasses, which, because of their composition, are difficult to disrupt.
With a heavy explosive load, DemiMod™ can disrupt IEDs in steel fire extinguishers or barrels. Breaching operators can also use it as an irritant injector by placing the charge against a window or door and adding CS or pepper to the liquid within the charge.

The charges have been constructed with no metal components, ensuring minimal projection of dangerous fragments. Water surrounds the explosive, providing tamping and imparting a higher proportion of the explosive energy to the jet. The water tamping also suppresses the flash of the explosive and reduces the shockwave generated by the charge, which is much safer than the uncontrolled recoil of heavy disruptors.