Professional 5-in-1 Indoor Air Quality Meter

The instrument that turns “the air feels off” into hard numbers. This professional handheld meter measures PM2.5, PM10, CO₂, formaldehyde (HCHO), and TVOCs simultaneously, alongside temperature and humidity, on a bright color display with real-time graphing. Laboratory-grade electrochemical and laser-scatter sensors deliver readings you can act on and log to the companion app for trend tracking. Rechargeable, calibratable, and rugged enough for inspectors, contractors, and demanding homeowners. Know exactly what you’re breathing, room by room.