Our high - tech company, with over 14 years of industry experience since 2011, offers a professional CO detector that is trusted by professionals in various fields, including safety inspectors, facility managers, and HVAC technicians. This detector is engineered with top - of - the - line technology to meet the stringent requirements of professional applications. It features a highly sensitive electrochemical sensor that can detect carbon monoxide concentrations with exceptional accuracy, typically within a range of 0 to 1000ppm, with an accuracy of ±5ppm. The professional CO detector is designed for continuous operation, with a robust construction that can withstand the rigors of daily use in different environments. It comes with a large, easy - to - read display that shows real - time CO levels, along with historical data and alarm status. To ensure maximum safety, the detector is equipped with multiple alarm functions, including a loud audible alarm that can reach up to 85 decibels, a bright visual alarm, and even a silent vibration alarm for discreet notifications. It also supports various communication interfaces, such as 4 - 20mA, Modbus, and Ethernet, enabling seamless integration with building management systems and other monitoring equipment. The professional CO detector has advanced self - diagnostic features that regularly check the sensor's functionality and battery status, providing users with peace of mind. With certifications from major international bodies like CE, UL, and CSA, our professional CO detector is a reliable and essential tool for ensuring the safety of people and property from the hazards of carbon monoxide.