The Carbon monoxide gas detector is a portable detector for detecting carbon monoxide (CO) gas. It can continuously monitor the CO gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound, light. High precision portable CO gas tester with compact size and light weight is easy to carry and operate. It is 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 alarm works when CO gas concentration reaches the level of the alarm. Compact size, light weight, easy to carry and operate. Professional and accurate measurement. Large LCD display and / switch. Can set concentration of alarm value. Auto power off in 10 minutes without any operation. Specifications: Name: SMART SENSOR Color: Orange + Black Material: ABS Plastic Sensor Type: Stablized Electrochemical Gas Specific (CO) Detection Gas: Carbon Monoxide (CO) Temperature Measurement: Ambient Temperature Display Unit: CO: ppm, Temperature: / Measurement Range: CO: 01000PPM, Temperature: 050 / 32122 Resolution: CO: 1PPM, Temperature: 0.1 / 0.1 Accuracy: CO:5% or 10PPM, Temperature: 1.5 Response Time: Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!