SCNTCV-Features:<br> HCHO measurement ranges 0.000 - 2.888mg/m while TVOC measurement ranges 0.000 - 9.999mg/m.<br> High accurately test the data of HCHO and TVOC (0.001 accuracy), this professional air quality meter helps to quickly and accurately detects harmful gas in your home.<br> Large LCD display shows the testing data in real for time, you can easily get to know the air quality around to have a healthier lifestyle.<br> Lightweight and easy to hold, you can put the air quality monitor inside your pocket or backpack then carry it with you anywhere.<br> Powered by 2XAAbatteries, the energy saving design to allow a longer testing for time and standby for time.<br> Widely used in home, car, hotel, apartment, office, outdoors and indoors.<br> <br> Specifications:<br> Material: ABS<br> Size: 133x43mm/5.23x1.69in<br> Testing Item: HCHO TVOC<br> Screen: LED Display<br> Power Supply: 2 x AA Batteries (Not Included)<br> Formaldehyde: (0.000 - 2.888mg/m)<br> TVOC: (0.000-9.999Mg/M3)<br> Working Voltage: 1.5V-3.2V<br> <br> Note:<br> Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.<br> Due to the difference between different monitors, the picture may not reflect the actual color of the item.<br> <br> Package includes:<br> 1X Air Quality Monitor<br> 1X Manual