A compact, easy-to-use air quality monitor that gives clear, actionable readings for healthier indoor environments. Key benefits Know what matters: Measures PM5, PM1.0, PM10, carbon monoxide (CO), total volatile organic compounds (TVOC) and formaldehyde (HCHO) so you can identify and address common indoor air risks. Immediate alerts: Built-in alarm notifies you as soon as air quality deteriorates, helping you take prompt action to protect your family or guests. Portable and simple: Lightweight, compact design makes the unit easy to carry and set up in different rooms, apartments, or hotel stays. Easy to read and operate: Vertical display mode shows time and date, or switches to a stopwatch view, while providing clear numerical readings at a glance. Stay connected: Seamlessly connects to your smartphone for remote updates and quick review of recent measurements. What makes it useful Multi-parameter monitoring: Simultaneous readings for particulate matter and common gaseous pollutants give a fuller picture of indoor air quality than single-measure devices. Practical display modes: Use the time/date display for everyday placement, or the stopwatch mode during activities (cleaning, cooking or airing out a room) to track changes over time. Quick response: The built-in alarm speeds your response when levels rise, reducing exposure time and helping maintain a healthier indoor environment. Compatibility, size and performance notes Designed for everyday indoor use — lightweight and portable for easy relocation between rooms, homes or travel accommodations. Connects with smartphones for status updates and tracking (smartphone app compatibility supported). Compact display prioritizes legible values and essential information such as current time and date. Use scenarios Home nursery: Monitor PM and VOC levels in a baby’s room and receive instant alerts if harmful gases or particles increase after cleaning or cooking. Travel and lodging: Carry the compact unit to hotels or short-term rentals to verify indoor air quality on arrival and during your stay. Kitchen and workspace: Place near cooking areas or home offices to watch particulate and gas levels during meal preparation or when using cleaning products. Practical, reliable, and portable — this monitor helps you detect, understand and respond to indoor air quality issues quickly and confidently.