Carbon Monoxide Inspector Industrial with Complete CO Meter & Analyzer Pump Kit Accurately measures CO gas concentrations from 0 – 1999 ppm Certified Intrinsically Safe to UL913 for Class I & II explosive hazardous environments The complete analyzer kit includes the Carbon Monoxide Inspector Industrial, a High quality certified intrinsically safe portable CO detector, a carrying case, and a hand aspirated pump & filter for sampling air or exhaust for CO. Designed & Made in the USA.*Please note that there will be a 15% restocking fee for units that are returned that are not defective*