Battery Voltage 3.7 VDC Display mode LCD screen Humidity Range 0-90% RH Model M1000 Operating Temperature 0 to 50 degree C Dimension 260x139x33 mm Brand Temtop Color Black Personal Air Quality Detector This air quality detector can detect PM2.5 PM10 Particles TVOC Temperature and Humidity. The air quality detector can directly transform the concentration of pollutants in the air into visual data and provide air quality for you to effectively safeguard the health of your family. This product is regularly exported to USA, Poland, Italy, Dubai, UAE, Oman, Qatar, Saudi Arabia, Nigeria, Kenya, Egypt, Australia, UK, France, Italy, Bangladesh, Thailand, Malaysia, Qatar, Singapore, Romania, Belgium, Russia, Brazil, Germany, Vietnam, etc.