Desktop CO2 Monitor and Alarm

The Desktop CO2 Monitor precisely measures carbon dioxide levels, temperature, and relative humidity in real time. Note: All Tongdy monitors and controls ship direct from the factory. Please allow 10-15 business days for shipping and handling. Its 3-color backlight LCD clearly indicates three CO2 concentration ranges, while the buzzer alarm alerts to critical thresholds. Users can view 24-hour averages and maximum CO2 values for detailed environmental insights. Designed for flexibility, it includes optional on/off output for ventilation control and supports Modbus RS485 communication. Powered by 24VAC/VDC, 100–240VAC, or a DC adapter, this monitor integrates seamlessly into diverse monitoring setups for expert environmental management. Real time monitoring room carbon dioxide NDIR infrared CO2 sensor inside with self calibration Accurate and reliable CO2 measurement More than 10 years lifetime of CO2 sensor Temperature and humidity monitoring Three-color (Green/Yellow/Red) LCD ba