HAKINAKU Air Quality Detector Indoor 5in1 Portable PM2.5 PM1.0 PM10 Humidity Temperature Monitor Dynamic HD Screen Air Qaulity Tester with Laser Sensor Built-in 1000 mAh Battery for Home Office About this item Portable mini 5in1 air quality detectorsDimensions: 3.3x2.0x0.67 inches, weight:2.oz, Come with lanyard. It is so convenient to carry it or hang it anywhere you want. Perfect to test the air quality, PM1.0/PM2.5/PM10, temperature and humidity. Built-in more accurate and faster laser sensorPM2.5 Accuracy:1ug/m,PM2.5 range:0-1000ug/m;temperature range: -4-140; humidity range: 0% to 95%RH; testing time:2 seconds. With this new model sensor, we can get the more accurate air quality around in 2s, warn us whether we are in a dangerous air environment. Visual & audible alarm air quality detectorsPM2.5: 0-35ug/m, green icon with nice shows, no alarm; PM2.5: 36-75ug/m, blue icon with good shows, no alarm; PM2.5:75-150ug/m, Yellow icon with caution show, alarm with di-di-di; Red icon with danger shows, alarm with lasting di-di-di. Built-in 1000mAh batteryTesting process:Turn on the detector, the PM1.0, PM2.5, PM10, temperature and humidity results will show on the HD screen in 2s. After real time working 5mins without any operation, the detector will turn off. With 1000 mAh battery, we can achieve 75 times of 5 min testing process. Dynamic UI display detection data All the data shows on the colorful 1.9'' HD screen dynamically in icon form, the alarm icon color will change when PM2.5 data changes. We can get the air quality data more intuitively and conveniently from the icon. Perfect for indoor useWe can use it in bedrooms, living rooms, kitchens, cellars, cars, grow tents, office, school and more to test the air quality. Fast shipping! Hassle-free returns! Please check my feedback! Buy with confidence!