Air Quality Detector 5 in 1 Real Time Data Multifunctional Indoor Formaldehyde Tester Industrial instruments<br> DISPLAY: design with LED screen digital display; the air quality tester can offer mean value for each air<br> USAGE: this air quality tester is designed to get an overview of the air quality in a home, workplace, school, a daycare centre or any other location<br> PORTABLE: the air quality tester makes it easy to take measurements everywhere, ensures the health of family members or employees<br> POWER SUPPLY: air quality detector Built with 1000 mAh rechargeable battery and packaged with one USB cable, the standby time can last for 3-4 hours<br> PRACTICAL: Just press the power on / off button, you can easily operate this air tester, real-time detection of harmful HCHO and TVOC<br> color: White<br> Size: 125*80*35mm<br> Quantity: 1pc<br> 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering.<br> 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding.<br> 3. Only the above package contents, excluding other products.<br>