Tilswall Air Quality Monitor, Detect PM2.5/PM10/PM1.0 Micron Dust2. 8" color liquid crystal display (LCD), 320x240 pixels User adjustable alarm threshold for formaldehyde (HCHO) to alert user of elevated levels Test variables: PM2. 5 1. 0 10, formaldehyde, TVOC, temperature, humidity Large 1000mAh capacity Lithium battery ,On board fan to draw in ambient air for more accurate real time results 5V Micro USB charging,Low battery warning Multifunctional & Scientific This indoor air quality monitor accurately assesses
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Tilswall Air Quality Monitor, Detect PM2.5/PM10/PM1.0 Micron Dust