Product Description Indoor air quality C02 monitor/Carbon Dioxide Meters/CO2 PPM Meters Brief introduction: This CO2 display is our new designed wall-mounted and desktop type large LED display unit combining latest technology for indoor air quality measurement. It shows real time Carbon Dioxide, Temperature, Relative Humidity with easy-to-read clock and calendar. The instrument can be configured directly with buttons. Applications: Indoor Air Quality: School, Classrooms, Meeting Rooms, Open-Plan Offices, Shopping Centers, Fitness Studios, industrial, automotive and institutional markets-anywhere to buildup of Carbon Dioxide can lead to danger or personal discomfort. Features: • Measures CO2, relative humidity and temperature • Measures range: 0~99.9%RH / -40~+80°C / 0~5000 ppm • Accuracy: ±2 %RH / ±0.3°C / ±30 ppm of 5% measured value • Wall mounted and Desktop mounted • Large, easy-to-read display with smart touch button • Display of date and time • Soft LED light, good for eyes. Dimension: