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• This is a CO2 monitor that gives an indication of the timing of ventilation.
• The instrument measures temperature and humidity as well as CO2 concentration. Proper temperature and humidity control is also important in a comfortable environment.
• Depending on the CO2 concentration, the LED lamp (Green, yellow, and red) changes color in three stages.　*The CO2 concentration value (ppm) that changes the LED lamp to yellow or red can be set freely.
• The buzzer can be turned on or off.　*The buzzer sounds only when the LED lamp turns red.
• The CO2 sensor can be calibrated using outside air.　*The error of the CO2 sensor gradually increases due to the non-adhesion of dust, dust, etc. in the air and aging. To ensure stable use for a long time, calibrate the product about every six months.
• Non-dispersive infrared gas sensors (NDIR sensors), which are less susceptible to other gases and have a long sensor life, are used as sensors for measuring CO2 concentration.
• It can be installed in two patterns: tabletop and wall-mounted.
• About CO2: In a room, CO2 concentration increases due to human breathing. Measuring CO2 concentrations is an effective way to reveal inadequate ventilation in multiuser spaces (from the Ministry of Health, Labour and Welfare).
• (1) Standard for ventilation to avoid situations with a high risk of infectious disease clusters CO2 concentration: 1000ppm or lower (Reference: From the Ministry of Education, Culture, Sports, Science and Technology's School Environmental Health Management Manual) (2) Standard for ventilation in classrooms, etc. CO2 concentration: 1500ppm or lower (2) This product meets the standards of the Ministry of Economy, Trade and Industry's Guidelines for the Selection of Carbon Dioxide Concentrator.