Features:<br> Using advanced chip to accurately detect and monitor the concentration of formaldehyde(HCHO) and total volatile organic compound(TVOC).<br> Immediately send out audible and visual alarm if the concentration of HCHO and TVOC exceed the normal level.<br> Super easy to operate, long press the button to power on, wait for a 180s countdown, and it will automatically monitor the HCHO and TVOC contents.<br> Easy to read, 3-color LED indicator shows you the level of TVOC - bad, normal, good.<br> Precision air quality monitor<br> Features rounded shape, glossy surface, compact and lightweight, easy to carry around.<br> Note:<br> *Batteries not included.<br> *Under normal battery level, the unit will enter standby mode after 30 minutes if there is no operation taken.<br> *Under low battery level, the unit will enter standby mode after 5 minutes if there is no operation taken.<br> Specifications:<br> : NOYAFA<br> Material: ABS<br> Color: White<br> Formaldehyde Dectection Range: 0.000~2.888mg/m3<br> TVOC Detection Range: 0.000~9.999mg/m3<br> Unit: mg/m3<br> Power Supply: 2pcs 1.5V AA Batteries (NOT included)<br> Item Size: 13.5*4.3*2cm / 5.31*1.69*0.78in<br> Item Weight: 51g / 1.79oz<br> Package Size: 16.5*9*3.2cm / 6.49*3.54*1.25in<br> Package Weight: 88g / 3.1oz<br> Packing List:<br> 1 * Formaldehyde Detector<br> 1 * User Manual(English)<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store