Gastec gas sampling pump teams up with detector tubes to meet more than 600 applications involving routine inspections or hazmat emergencies. Pump features easy-to-pull handle and one-stroke piston action. Equipped with thermal ring that provides on-the-spot measurement of ambient temperature to reduce risk of error and increase safety. Choose from detector tubes that identify and measure hydrocarbons, benzene, chlorine, carbon dioxide, carbon monoxide, toluene, chloroform and more. Nextteq LLC, Tampa, Fla.