Features: Accurately monitor indoor CO2 levels in ppm while tracking real time temperature and humidity with this air quality monitor, featuring alarms when thresholds are exceeded. Equipped with a LCD screen and ABS housing, this compact analyzers displays critical environmental data clearly for readability in any indoor setting. Ideal for families, office managers, and facility maintenance teams seeking air quality monitoring solution for living spaces or workplaces. Perfectly suited for bedrooms, classrooms, conference rooms, and laboratories where maintaining optimal CO2 levels and environmental comfort is important. This portable CO2 detector combines professional gas analysis capabilities with wall mountable convenience, ensuring continuous air quality supervisions without occupying desk space. Specifications: Component: ABS. Dimensions: about. 150x52x30mm/5.9x2.04x1.18in Display: LCD display Measuring ranges: CO2: 400-5000ppm. Preheating time: 1min. Batteries: 3xAAA batteries requires (batteries not included). Pattern: 2 pattern optional Package Includes: 1pc Carbon Dioxide Detector note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.