🌿 BRWISSEN Particulate Analyzer for Pollution and Formaldehyde Review

PM PARTICULATE MATTER DETECT -- Air pollution monitor can test indoor fine particles. 6-channel tiny particle number testing (Number of particles/liter)--pm0.3 / pm0.5 / pm1.0 / pm2.5 / pm5.0 / pm10; 3-channel particulate matters quality detection (μg/m3)--PM1.0 / PM2.5 / PM10;Press and hold the set/confirm button for 3 seconds to enter Settings page. DATA LOGGER & EXPORT -- Air quality meter has a 128M data memory card that support 10w + data records storage, record storage frequency: once a minute. Data records can be exported to the computer in TXT file and analyze air quality changes in graphs. AUTOMATIC PHOTOSENSITIVE -- BR-A air quality tester automatically turns off the screen according to the ambient brightness, creating a good sleeping environment, saving energy and electricity. Can turn off this function in settings page. CO2 / HCHO / TVOC SENSOR -- NDIR Non-Spectral Infrared CO2 Carbon Dioxide Sensor, Absorption chamber Optical Coating; Electrochemical formaldehyde HCHO sensor, double platinum catalytic electrode; semiconductor TVOC sensor, indoor air quality meter can accurately measure a variety of volatile organic compounds TVOC / VOCs, such as benzene, nitrogen oxides, hydrogen sulfide etc. AIR QUALITY ALARM -- Desktop air quality detector with touch button and 3000 mAh rechargeable battery, automatic detection at start-up, drawing 24hrs air quality change curve; Comprehensive assessment of ambient air quality, AQI air quality alarms base on US standards, automatic TVOC HCHO sensor calibration.