Universal Detection Technology’s chemical detection kits equip first responders and military personnel in rapidly identifying a chemical agent threat, such as extreme levels of acidity or basicity, chlorine/fluoride, hydrogen sulfide and sulfur dioxide. Designed to use in the field for first responders or military personnel, the Chameleon detection system offers hands-free detection for harmful chemical agents and eliminates the need for a liquid sample. Users wear a portable chemical detection kit on their forearm. Each armband has a cassette holder containing up to ten (10) small cassettes, each of which can detect a unique chemical agent and identify its presence through a clear color-changing indicator. The Chameleon armband is fully functianble in extreme temperatures (-30 C to 50 C or -22 F to 122 F), and can operatue while fully immersed in water. Each cassette is easily replaceable after a 24 hour service life.