Use this economical VOC sensor wherever solvents are present—ideal for paint and print shops, wood working, and laboratories. The sensor is highly sensitive to VOCs and solvent vapors such as methylene chloride, acetone, naphtha, perchloroethylene, and trichloroethylene. The LED bar graph displays the hazard level of gas or vapor—green indicates normal, yellow for caution, and red for danger. An audible alarm also alerts you to dangerous levels. Responds in one minute. A rechargeable NiCd battery lets you take the detector anywhere—trace leaks to their source. Just plug the detector in and you're ready to go—nothing to install. Measures 23/8''W x 31/2''H x 13/8''D.