Smiths Detection of Watford, UK, has introduced a multisensor hand-held device that can quickly identify toxic industrial chemicals, chemical warfare agents, and gamma radiation. The Hazardous Gas and Vapor Identifier (HGVI) uses ion mobility spectrometry, photoionization detection, and Taguchi gas sensors to look at unknown substances from various angles. The device employs the company’s H-Fusion decision enhancement software to improve analytical accuracy. It was designed by Smiths in conjunction with first response teams to provide the most likely identification quickly and accurately.