Ensure a healthier indoor environment with this advanced multifunctional Air Quality Monitor, featuring cutting-edge semiconductor, infrared, and electrochemical detection technologies. Precisely monitor CO2, TVOC, HCHO, PM2.5, and PM10 levels to maintain optimum air quality and safety in your living or working space. Designed with user convenience and reliability in mind, this device delivers real-time, accurate readings on a clear backlit LCD screen for effortless monitoring. Key Features: · Multifunctional Air Quality Detection: Combines semiconductor, infrared, and electrochemical sensors to measure CO2 (400-5000 PPM), TVOC (0-9.999 mg/m³), HCHO (0-9.999 mg/m³), PM2.5 (0-999 µg/m³), and PM10 (0-999 µg/m³) for comprehensive indoor air monitoring. · USB Charging & Long-lasting Battery: Equipped with a built-in 1200mAh rechargeable lithium battery and USB charging support, this indoor air quality monitor provides uninterrupted 24-hour operation, eliminating the hassle of frequent battery replacement. · Accurate Real-Time Detection: Innovative design with ventilation openings on both sides and the back facilitates convection airflow, ensuring precise and responsive air quality readings. · Durable ABS Construction: Made from high-quality ABS material, the monitor is robust, wear-resistant, and built to withstand daily use for extended durability. · Backlit LCD Display: Features a bright, easy-to-read backlight LCD screen that clearly shows real-time air quality data, even in low-light environments. · Wide Operating Temperature Range: Suitable for use in environments ranging from 0°C to 70°C, making it versatile for various indoor settings. Specifications: · Item Type: Air Quality Monitor · Material: ABS · Detection Technology: Semiconductor, Infrared, Electrochemical · Sensors: PM2.5 Sensor, Semiconductor Sensor, Electrochemical Sensor · Display Mode: Backlight LCD · Working Voltage: 5V · Battery: Rechargeable Lithium Battery 1200mAh (Built-in) · PM2.5 Range: 0-999 µg/m³ · PM10 Range: 0-999 µg/m³ · HCHO Range: 0-9.999 mg/m³ · TVOC Range: 0-9.999 mg/m³ · CO2 Range: 400-5000 PPM · Applicable Temperature: 0-70℃ Package Includes: · 1 x Air Quality Monitor This Air Quality Monitor is an essential tool for anyone seeking precise and reliable indoor air quality assessment. Its multifunctional sensors, durable build, and convenient USB charging make it ideal for homes, offices, classrooms, and other indoor environments where air quality matters most. Stay informed and breathe easier with this comprehensive and easy-to-use indoor air quality meter.