Description Portable Mini Carbon Monoxide Detector CO Gas Meter with Sound and Light Alarm The product is shipped based on the color or size of the main image of the product page. Portable carbon monoxide gas detector with compact size and light weight is easy to carry and operate. It can widely used in petroleum, chemical, coal, metallurgy, paper, fire, municipal, telecommunications, food, textile and other industries. Features: Portable detector for detecting carbon monoxide(CO) gas. Can continuously monitor the CO gas concentration in the surrounding environment. Sound and light alarm works when CO gas concentration reaches the level of the alarm. Powered by 3 batteries(not included). Compact size, light weight, easy to carry and operate. Specifications: Sensor: Electrochemical Principle Detection Gas: Carbon Monoxide CO Measuring Unit: PPM Range: 0-1000ppm Resolution: 1ppm Alarm: Sound and Light Alarm Alarm Point: Low: 35ppm; Middle: 70ppm; high: 200ppm Operating Temperature: 0-50C Operating Humidity: 15%-90%RH(no condensation) Power Supply: 3 * 1.5V AAA Batteries(not included) Item Size: 11.5 * 6 * 2.5cm / 4.53 * 2.36 * 0.98in Item Weight: 87g / 3.09oz Package Size: Approx.18.5 * 8 * 5cm / 7.28 * 3.15 * 1.97in Package Weight: 164g / 5.78oz Package List: 1 * Carbon Monoxide Detector 1 * User ManualProducts from JINYIs store