Industrial Scientific Corporation is a leader in providing reliable gas detection and monitoring equipment worldwide. The company designs, manufactures and sells a comprehensive line of portable multi-gas and single gas detectors, photo-ionization detectors (PID), fixed-point gas monitoring systems, and turnkey services. Gas detectors and monitors are essential for a variety of Industrial and municipal applications including oil exploration and refining, petrochemicals, pulp and paper, mining, steel, fire services, rescue, police, hazardous materials (HazMat), food processing, transportation, water treatment, shipping, and gas and electric utilities. Also known as “sniffers,” gas detectors provide protection from unsafe levels of oxygen (O2), combustible gases like methane (CH4), and toxic gases including volatile organic compounds (VOC), carbon monoxide (CO), hydrogen sulfide (H2S), sulfur dioxide (SO2), nitrogen dioxide (NO2), chlorine (Cl2), nitric oxide (NO), chlorine dioxide (ClO2), ammonia (NH3), hydrogen (H2), hydrogen chloride (HCl), phosphine (PH3) and hydrogen cyanide (HCN). Industrial Scientific instrumentation uses a combination of audible, visual and vibration alarms to alert the user to these atmospheric hazards.  Industrial Scientific is a multinational corporation based in Oakdale, Pennsylvania, USA with regional headquarters in Arras, France; Shanghai, China; and sales and service offices in Australia, Canada, China, Czech Republic, Dubai, France, Germany, Italy, Netherlands, Saudi Arabia, Singapore, Switzerland and the United Kingdom.