Monitor your indoor environment effortlessly with this advanced 5-in-1 Air Quality Detector, featuring cutting-edge semiconductor, infrared, and electrochemical sensors to accurately measure CO2, formaldehyde (HCHO), total volatile organic compounds (TVOC), temperature, and humidity. Designed for precision and ease of use, this air quality meter provides real-time monitoring on a vibrant LCD TFT color screen, helping you maintain a healthier living or working space. Key Features: · Comprehensive 5-in-1 Detection: Utilizes semiconductor, infrared, and electrochemical detection technologies to simultaneously monitor CO2, HCHO, TVOC, temperature, and humidity for all-around air quality assessment. · User-Friendly Operation: Simply press and hold the power key for 3 seconds to turn the device on or off, with automatic detection commencing immediately upon startup. · Temperature Unit Switching: Easily toggle between Celsius (℃) and Fahrenheit (℉) by pressing the power key for 1 second, allowing personalized temperature readings. · Long-Lasting Battery Life: Equipped with a built-in 1200mAh rechargeable lithium battery, providing up to 7 hours of continuous use on a single charge. Convenient Type-C USB charging ensures quick and hassle-free power replenishment. · Enhanced Airflow Design: Strategically placed sensor openings on both sides and the back improve airflow circulation, enabling more precise and responsive real-time detection. · Durable ABS Construction: Crafted from sturdy, wear-resistant ABS material, this compact and lightweight device is designed for portability and long-term durability. Specifications: · Item Type: Air Quality Detector · Material: ABS · Display: LCD TFT Color Screen Digital Display · Working Voltage: 3.7V · Charging Method: DC 5V 500mA Type-C USB · Sensors: PM2.5 Infrared Sensor, Semiconductor Sensor · Battery: Built-in 3.7V 1200mAh Rechargeable Lithium Cell · Size: Approx. 90 x 70 x 35mm (3.54 x 2.76 x 1.38 inches) · Charging Time: Approximately 4 hours · Standby Time: 300-360 minutes Package Includes: · 1 x Air Quality Detector This air quality meter is the perfect companion for homeowners, offices, and anyone requiring reliable air monitoring. Its multi-sensor design, long battery life, user-friendly interface, and durable build make it an essential tool for maintaining optimal indoor air quality and enhancing your overall well-being.