RYOTAKU Carbon Dioxide Concentration CO2 CO2 Large Japanese NDIR Alarm Cancellation Temperature and Humidity Alarm Value USB PSE Certified (Japanese

[NDIR Non-Dispersive Infrared Sensor] This sensor is designed specifically for carbon dioxide detection and can detect carbon dioxide in real time every second. It has fast detection speed, high detection accuracy, and a long service life. [Japanese-language screen and certified for the Japanese market] This latest development for the Japanese market features a clear Japanese interface, so even children can easily tell when to ventilate. The screen brightness can also be freely adjusted. It's also PSE and EMC certified for the Japanese market, so you can use it with confidence. Multi-function, temperature and humidity monitor: This single unit has three functions: CO2, temperature, and humidity. It measures CO2 from 400 to 5000 ppm, temperature from 0 to 50 degrees, and humidity from 25 to 95%. The readings do not always start at 400 ppm, but are displayed based on the environment. [Warning Value Adjustment and Alarm Cancellation] The warning value is set to 2000 PPM, but you can manually change it to suit your environment. If the alarm goes off when the warning value is exceeded, you can press any button to turn off the alarm, making it very easy to use. [Added a function to view historical data] Pressing the MEN button in normal mode will display the maximum and minimum values of CO2 concentration, temperature, and humidity measured over the past 24 hours. This allows you to understand the air conditions throughout the day. 1 carbon dioxide concentration meter, instruction manual, USB cable,