Portable CO₂ detector with backlit LCD display, temperature/humidity monitor, USB powered – for home and office

【Real-Time Monitoring Alerts】Stay informed with the carbon dioxide monitor that detects CO2 concentrations in real time, triggering four warning lights when levels exceed 1999. The smart color display ensures easy reading, with a flashing red warning light that alarms at concentrations between 1600 and 1999. 【Easy to Read】The CO2 Detector uses a smart color display with clear numbers. When the CO2 concentration is between 1600 and 1999, the red light starts flashing and triggers an alarm. Enjoy a smart and intuitive interface with our air quality tester, featuring a multi-color LED indicator for quick ventilation assessment: green (good), orange (fair), and red (poor). 【TVOC Sensor】 The CO2 Detector with TVOC sensor is designed to monitor CO2 levels, temperature, and humidity to maintain a healthy environment. USB charging is highly recommended. 【Wide Utility】 This portable CO2 detector features a compact design and is suitable for monitoring air quality in homes, schools, office buildings, hospitals, restaurants, shopping malls, factories, hotels, laboratories, and other locations. 【5-in-1 Versatile Design】 This robust CO2 detector provides comprehensive monitoring, measuring CO2 levels, TVOC values, temperature, PM2.5, and humidity. Switch between Fahrenheit and Celsius display modes to suit your preference.