[Portable Air Quality Monitor] Monitor 11 critical air quality indexes in real-time: , CO2, PM1.0/PM2.5/PM10, Particle count, HCHO, TVOC, temperature, Humidity, and dual alarm systems. This laboratory-grade indoor air quality monitor provides precise detection of hazardous substances like construction dust, mold spores, and chemical off-gassing. [Clear LCD Display] The large backlit LCD screen on this portable air quality monitor shows each reading in vibrant color reminders. Brightness adjusts to your environment-day or night-so you can check temperature, humidity, and more at a glance. [Versatile Application] This indoor air quality monitor is perfect for living rooms, kitchens, basements, offices, grow tents, cars, and more. Its small footprint and user-friendly interface make maintaining a healthy environment effortless. [Product Usage Notes] ①Before first use, charge the device for at least 10 minutes, then and hold the power button to turn it on. ②If readings appear inaccurate over time, restart the device to recalibrate the sensors. Color:Black Material:plastic Package Contents: 1 * Air Quality Monitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.