Welcome to our shop! Introducing our smart carbon monoxide detector, a portable device designed to detect carbon monoxide (CO) in the environment. This detector not only measures CO levels but also the temperature, with two temperature units available (C and F). With a wide measurement range, it can detect CO levels from 0 to 1000ppm and temperature from 0 to 50C (32 to 122F). The resolution for CO measurement is 1ppm, and for temperature, it is 0.1C (0.1F). This detector has various applications and is commonly used in industries such as petroleum, chemical, coal, metallurgy, paper, fire, municipal, telecommunications, food, and textile. It is compact and portable, with dimensions of 135 x 47 x 25mm, making it easy to carry and use. The device features a clear LCD display, ensuring easy reading of measurements with its large digital display and character display. Note: 1. Please allow small size error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. (Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after sales service) Thank you for meeting me.I hope this helps you. Wish you a happy life.