HCC1-GC210 portable ammonia detector (hereinafter referred to as detectors), is a continuous detection of toxic and hazardous working environment, flammable and explosive gas concentrations in the intrinsically safe apparatus. It is suitable for explosion, toxic gas leak disaster, underground pipelines or in mines and other places, can effectively guarantee the safety of workers from abuse, from loss of production equipment. Detector for the detection of gas concentrations in the natural diffusion, using imported electrochemical sensors (available for the catalytic combustion gas), with excellent sensitivity and excellent repeatability; equipment using embedded micro-control technology, the Chinese menu is simple, functional, high reliability and performance of the whole lead at home. Detector housing projects with high strength materials, composite elastic rubber material crafted, high strength, feel good, and waterproof, dustproof, explosion-proof. This product is suitable for testing the concentration of ammonia in ambient air, widely used in metallurgy, power plant, chemical industry, mines, tunnels, trenches, underground pipelines and other places, effectively prevent poisoning accidents.