The AP2C is a portable chemical contamination control device used to detect chemical agents G (Sarin, Tabun, Soman, etc.), VX and Mustard gas in the form of vapor or aerosols. The AP2C detects compounds of phosphorus (contained in G, V agents) and/or compounds of sulfur (contained in HD, V agents). The high sensitivity and fast response time make the AP2C especially suitable to check up contamination after decontamination processes. Nerve gases as GA, GB, GD, GF , Vx (Sarin, Tabun, Soman, Vx) Mustard gas (HD) It is very simple to use, no set up procedure, no preselection of channel, no purging operation; there is only one switch on the AP2C: the on/off switch. Measurements appear on the easy to read luminous display.