Air Quality Detector Indoor PM2.5 CO2 Formaldehyde Temperature and Humidity Monitoring

Air Quality Detector Indoor PM2.5 CO2 Formaldehyde Temperature and Humidity Monitoring

Feature:

1. Clock chip: Display time accurately

2. Environmental pollution judgment Comprehensive air quality measurement

3. Frequency buzzer: Alarm for excessive pollution

4. TFT liquid crystal display: 2.8 inch display

5. Constant temp calibration