Chemical reconnaissance device – a device designed to detect in the air, on the ground and on equipment warfare agents: rocket fuel components, chlorine, sarin, soman, mustard gas, phosgene, diphosgene, hydrocyanic acid, chlorine cyanide, and V-gas vapours in the air. The principle of operation of the CAD is as follows: when pumping through the indicator tubes of the analysed air, in case of the presence of toxic substances (SV), there is a change in the colour of the filler of the tubes, by which approximately determine the concentration of SV. The device consists of a case and pumps placed in it, paper cassettes with indicator tubes, smoke filters, nozzles to the pump, protective caps, a heating pad and cartridges for it, and an electric lantern. In addition, the kit includes a spatula, instruction booklet for the determination of sarin, soman, VX-gases and instructions for operation of the device. For carrying the CAD instrument there is a shoulder strap with a braid. The weight of the kit is about 2.3 kg.