Portable Mini Carbon Monoxide Detector CO Gas Meter with Sound and Light AlarmThe 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 PrincipleDetection Gas: Carbon Monoxide COMeasuring Unit: PPMRange: 0-1000ppmResolution: 1ppmAlarm: Sound and Light AlarmAlarm Point: Low: 35ppm; Middle: 70ppm; high: 200ppmOperating Temperature: 0-50COperating 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 * 0.98inItem Weight: 87g / 3.09ozPackage Size: Approx.18.5 * 8 * 5cm / 7.28 * 3.15 * 1.97inPackage Weight: 164g / 5.78ozPackage List:1 * Carbon Monoxide Detector1 * User Manual