KETOTEK CO2 Monitor Indoor Air Quality Meter with CO2 Alarm, Temperature, Humidity Display, Portable Carbon Dioxide Detector for Home, Car, Office or School

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About This 3-in-1 air quality monitor: CO2 detection range: 400-5000PPM. Temperature detection range: 14.2°F to 140°F (-9.9 to 60 °C). Humidity detection: 20% to 95%. This carbon d ioxide detector supports desktop or wall mounting. Extra-large viewing angle VA display: No need to worry about air quality anymore. Screen displays CO2 concentration, temperature, humidity, comfort indicator, CO2 concentration level, ventilation prompt, and low battery alert. Screen brightness is adjustable. Visual and Audible Alarms: 6 CO2 concentration levels with alarm functionality to monitor air quality and determine when ventilation is needed. The sound alarm can be turned off. Suitable for classrooms, offices, waiting rooms, children's rooms, and homes. High-precision sensor: This CO2 monitor is equipped with a Swiss Sensirion industrial-grade photoacoustic sensor. Its high sensitivity and stability compensate for the limitations of NDIR technology, ensuring fast and accurate air quality monitoring. Accuracy is ±50 ppm. USB-powered and battery-powered: In mains power mode, CO2 values are updated every 6 seconds. In battery mode, the CO2 detector continues to function normally. Simply press the CO2 button manually to measure CO2 concentration. Overview Brand : KETOTEK Alarm : Audible Number of Items : 1 Manufacturer : KETOTEK Show more