5-in-1 Professional Indoor Air Quality Monitor Indoor Portable CO2 Monitor | Temperature | Formaldehyde Detector | Humidity TVOC | Air Quality Tester - Confined Space Clean Air Monitor Black

★【High-precision electrochemical detection module】 This air quality detector, the use of new upgraded high-quality electrochemical detection module, good precision, stable performance, strong anti-interference ability, low consumption, long service life.

★【High Definition Large Screen】At a glance, it displays the power level, CO2, TVOC, HCHO, Humidity& Temperature. no need to calibrate, you can test accurately when you turn on the device, easy to operate, even the elderly can use it easily.

★【Exceeding Alarm】Different colors show different air quality, when the color indication is green, it means safe; When the color indicator is yellow, the machine alarms "BB...BB" twice when it exceeds the safe range; When the air status is very "poor", the color indication is red, the alarm "BBB...BBB" twice. Double-click the top N/OFF button to cancel the beeping alarm program and keep only the digital display monitoring function. Restore all startup programs after shutdown and restart.

★【Scientific Design】 Hundreds of ventilation holes at the rear not only accelerate the convection between the air and the machine for effective detection, but also provide good heat dissipation.

★【Mini Portable】Our air quality detector measures 3.86in*2.64in*0.9in and weighs only 0.49lb. Built-in lithium-ion battery, it can work for about 10 hours of continuous testing on a full charge without plugging it in. Great for living rooms, bedrooms, baby rooms, kitchens, bathrooms, offices, schools, hotels, cars, greenhouses, flower houses, basements, garages, wine kilns ...... and more.