MCH3 Smart CO2 Detector Temperature Humidity, Black

Barely used, and still has original screen protector and packaging. MCH3 Smart CO2 Detector, barometer, and thermometer, all in one. It uses a dual-channel NDIR sensor for accurate and fast measurements of carbon dioxide, temperature, and humidity. The device has a 3.5-inch TFT capacitive touch screen. It can log up to 7 days of historical data. The detector has a password protection feature. It is powered by a USB supply. Power Supply: DC5V Sensor Type: Dual channel NDIR (Non-Dispersive Infrared) for CO2 Features: Multi-language support, memory backup, automatic baseline calibration, and a CO2 max alert. Functionality: It acts as a data logger for CO2, RH, and temperature, and includes a trend chart. See pics for details and measurements.