Life Basis CO2 Monitor Portable CO2 Detector Air Quality Monitor with NDIR Sensor and Warning Sound for Grow Tents, Wine Cellars, Homes, Office, School, Cars 400~5000 PPM Range

Life Basis Mini CO2 Monitor Portable with NDIR Sensor and Warning Sound How to use? 1. Long press the power button to turn on the machine. 2. Press and hold the power button on state until you hear the beep to turn off the power suppy. 3. The screen will automatically turn off without any active within 5 minutes, will be standby mode. Short click to view the CO2 concentrtion. The screen display lasts for 1 minute. 4. After turning on the power, you can turn on and off the warning sound by pressing the "power button" twince in succession. The CO2 concentration PPM of the color display on the screen is follows: Green: 400-800 PPM (±50 ppm) Yellow: 801-1200 PPM (±50 ppm) Orange: 1201-1500 PPM (±50 ppm) Red: 1501-5000 PPM (±50 ppm) Note: 1. The alarm goes off when the measured value exceeds 1000ppm. 2. The alarm will be 1 minute when the measured value exceeds 1500ppm. Calibration Mothed —— Manual Calibration Step 1: Long press the "power button" for 3 seconds, the screen display [8888]. Step 2: With "8888" displayed on the screen, press the "power button" 3 times within 3 seconds, the screen display [1230]. Step 3: Press the "power button" immediately, the screen display [400]. Step 4: When the screen changes to 200, the 200-seconds count strts, the screen display [200]. Step 5: When "pass" appeats on the screen, calibration is completed, the screen display [PASS].

High Precision Sensor - Life Basis 2022 update version CO2 detector with high precision NDIR technology sensor more accurately track air quality. Mini size for easy portability, real-time monitor air quality to protect you and your family's health. Warning Display and Alarm Function - LCD screen for clearer display, color warning display the different levels of CO2 concentration (Green 400-800 PPM, Yellow 801-1200 PPM, Orange 1201-1500 PPM, Red 1501-5000 PPM). The alarm goes off when the CO2 exceeds 1000 PPM, The alarm will be 1 minute when CO2 exceeds 1500 PPM, timely alerts air quality to give you peace of mind. Easy to Operate - Long press the power key to switch on/off. The screen will auto turn off without any active within 5 mins, short click will light up the screen again. Smart bright screen reduces power consumption and increases the number of hours of electricity used. Dense Opening Design - It is convenient for air circulation and heat dissipation. Openings design on the side and back of the device not only ensures that the sensor is in full contact with the air, but also facilitates heat dissipation, thus reducing false alarms caused by excessive temperature and insufficient contact with the outside air. Wide Application and Guarantee - Perfect for monitoring air quality in schools, office, home, factories, hotels, grow tents, hospitals and anywhere high levels of carbon dioxide are emitted. Life Basis provide 30 days no reason to refund and 12 months product replacement support, please rest assured to buy.