Monitor your indoor air quality effortlessly with this advanced CO2 Temperature Humidity Sensor, featuring a vibrant color screen display for easy reading even in low light conditions. Designed for portability and versatility, this compact air quality detector is ideal for use in homes, offices, malls, hotels, and more, providing real-time monitoring of CO2 concentration, temperature, and humidity to help you maintain a healthy environment. Key Features: · Colorful Display Screen: The bright color screen enhances visibility and readability, making it simple to check air quality data at a glance, even in the dark. · Portable and Lightweight Design: Compact and easy to carry, this sensor is perfect for use in various indoor settings, ensuring you can monitor air quality wherever you go. · Real-Time Multi-Parameter Detection: Accurately measures CO2 levels (400-5000 PPM), temperature (0-50°C), and humidity (0-99% RH) with high precision (CO2 accuracy ±1ppm, humidity accuracy ±2% RH). · Visual Color Indicator: The color-coded CO2 indicator changes based on current concentration levels, providing intuitive alerts for quick assessment of air quality. · Convenient Rechargeable Battery: Equipped with a built-in 1200mAh polymer lithium battery, the device supports easy charging via any mobile device USB port, with a clear battery indicator that flashes during charging and stops when fully charged. · Long Working Time: After a 2-3 hour charge, the sensor operates continuously for 4-6 hours, offering reliable performance for extended monitoring sessions. Specifications: · Item Type: CO2 Temperature Humidity Sensor · Battery: Polymer Lithium Battery 1200mAh (Included) · CO2 Detection Range: 400-5000 PPM · Temperature Detection Range: 0-50°C · Humidity Detection Range: 0-99% RH · CO2 Accuracy: ±1ppm · Humidity Accuracy: ±2% RH · Charging Time: 2-3 hours · Working Time: 4-6 hours · Weight: Approx. 195g / 6.88oz Package Includes: · 1 x CO2 Temperature Humidity Sensor This CO2 Temperature Humidity Sensor combines precise environmental monitoring with user-friendly features and portability, making it an essential tool for maintaining optimal indoor air quality in any setting.