Built in battery supports 24+ hours continuous operate with only 2 hour charging time Ensures uninterrupted for emergencies responders and research teams during extended field operate Features alarms when concentration exceeds preset values, enhancing user awareness Ideal for high risk industries like petrochemical and mining to potential accidents with timely alerts Achieve accurate results with high sensitivity sensors, detecting ranges of 0-20ppm Effectively monitors CO2 concentration for industrial site, labs, and facilities to ensures workplace and health Lightweight handheld device with IP54 waterproof / dustproof rating Built for harsh environments, perfect for field inspectors and outdoor workers requiring detections Equipped with clear LCD display showing real time data controls Suitable for all skill levels from beginners to professional, widely used in educational institutions and industrial training programs, Manufacturer: Mekalero