Each kit contains 12 disposable sampler detectors, one book of M8 Paper, and one set of instruction cards. The case is made from molded, high-impact plastic with a nylon carrying strap and nylon belt attachment.
Each sampler-detector contains a square spot for blister agents, a star test spot for nerve agents, and a lewisite detecting tablet and rubbing tab. The test spots are made of standard laboratory filter paper. When the ampoules are crushed between the fingers, channels in the plastic sheets direct the flow of liquid reagent to wet the test spots.
Each test spot or detecting tablet develops a distinctive color which indicates whether a chemical agent is, or is not, present in the air. The kit does not need to be pointed in a certain direction for it to detect chemical agents, nor does it require a close proximity to work effectively.