INKBIRDPLUS 6-in-1 Indoor Air Quality Monitor, Detects CO2, PM2.5, PM10, AQI, Temperature and Humidity with Alarm, for Rooms, Cellars, Grow Tents, Offices, etc. (PTH-9A)

6-in-1 Air Quality Monitor: INKBIRDPLUS 6-in-1 Indoor Monitor has built-in professional detection sensors, it can as it should be detect the current CO2 concentration, PM2.5, PM10, AQI, temperature, and humidity in the air
Three AQI Stages & Sound Alarm: This Air Quality detector is designed with 3 stages of AQI – normal mode (0-50), warning mode (51-100), and danger mode (101-500). When the AQI index exceeds 100, the detector will sound an alarm
Calibration Function: After the device is turned off, take it to a ventilated place, and press and hold the three keys at the same time, the product will enter the automatic calibration state of carbon dioxide concentration value for 200 seconds
Color LED Screen: The color display with backlight makes each and every value clear at a glance, and you’ll be able to also check the time/date/year at the detector. This air quality meter also supports setting the current time, C°/F° switching
Wide Application: This portable detector can detect air quality in bedrooms, living rooms, kitchens, cellars, cars, grow tents and more. With a hook design, it may be placed at the desktop or hung at the wall for simple viewing, is a perfect indoor air quality detector for our lives
NOTE: We recommend that when the use of the detector for the first time, place the device in an open and uninhabited environment and manually calibrate it once to steer clear of inaccurate readings