SPR-722 portable Carbon Monoxide gas detector is widely used in areas where explosion-proof protection is required or toxic gas leaks may occur, such as petroleum, chemical, environmental protection, metallurgy, refining, gas transmission and distribution, chemical medicine production, agriculture, and other industries — to protect workers' lives and avoid damage to relevant equipment. The shell is made of high-strength engineering plastics and composite anti-skid rubber. Waterproof, dust-proof, and explosion-proof.