Handheld Multi-Function Air quality Monitor (PM2.5, TVOC, temperature, humidity)

USB power Rechargeable Li-battery 1200mAh Test range : PM2.5+ O3+TVOC+ AQI+PM1.0+PM10+ Temperature+Humidity -Laser sensor -TFT LCD screen display -320*240 pixels -It can be used in office, indoor and fitment pollution detection -24 hours real time monitoring -Power supply:Built in Li-battery 1500mAh -Material : ABS with TFT Screen -Color:white -Size : 155*87*35MM -Detection data range: PM2.5(0-1000ug/M3) O3(0.000-5.000ppm/M3) TVOC(0.001-9.999Mg/M3)