Monitor your indoor air quality with this advanced CO2 Detector, designed to provide accurate real-time measurements of carbon dioxide (CO2), temperature, and humidity. Equipped with a high-performance chip, this compact device ensures precise environmental data displayed clearly on its screen, helping you maintain a healthy living or working space. Key Features: · Accurate Multi-Parameter Detection: Measures CO2 concentration within a range of 400-5000 ppm, temperature from 14℉ to 122℉ (approx. -10℃ to 50℃), and humidity levels between 20% and 85% RH, providing comprehensive air quality insights. · Visual and Audible Alerts: Features a three-color symbol indicator to display CO2 levels visually, combined with an automatic buzzer alarm that sounds when CO2 concentrations exceed preset warning thresholds, ensuring timely notification for safer air quality. · Long-Lasting Rechargeable Battery: Includes a built-in 1600mAh rechargeable lithium battery with a Micro USB charging interface. A quick 2-hour charge delivers up to 24 hours of continuous use, minimizing battery replacements and enhancing convenience. · Adjustable Display Brightness: The screen brightness can be customized to suit different lighting environments, reducing eye strain and improving readability whether day or night. · Compact and Portable Design: Small, lightweight, and exquisitely crafted, this air quality tester easily fits in your pocket, backpack, or car, making it an ideal companion for travel, business trips, or monitoring newly renovated spaces. Specifications: · Item Type: CO2 Detector · CO2 Detection Range: 400-5000 ppm · Temperature Range: 14℉-122℉ (approx. -10℃ to 50℃) · Humidity Range: 20%-85% RH · Sampling Time: 1.5 Seconds · Battery: 1 x 1600mAh rechargeable lithium battery Package Includes: · 1 x CO2 Detector This CO2 Detector is an essential tool for anyone looking to maintain optimal indoor air quality. Its precise measurements, reliable alerts, and user-friendly design make it perfect for homes, offices, and various indoor environments, helping you protect your health and well-being with ease.