Handheld Multi Parameter Air Quality Monitor with PM2.5

Handheld Air Quality Monitor provides precise real-time measurements of PM2.5, HCHO, TVOC, CO, CO2, temperature and humidity, making it ideal for assessing indoor air quality at home or in the office.  Featuring a 3.2-inch color LCD, it displays data clearly and stores up to 8 hours of readings for review. The device includes battery monitoring with low power alerts, live voice prompts, and alarms to ensure timely awareness. Users can operate the monitor with a simple one-click power function. Large, bright 3.2 inch color LCD display. PM2.5, HCHO, TVOC, temperature and humidity measured in real time. Built-in memory records data for the last 8 hours. Battery power is continuously monitored, and with a low power reminder function and USB charging cable. Live-person voice prompt and alarm function. Self calibration function. One-click on / off voice function for convenient operation. Specifications Screen: 3.2 inch color LCD display, resolution of 320 x 240 Operating Temperature: 32º