DM73B WiFi Smart Carbon Dioxide Formaldehyde Dust Detector with Time Record

1. Material: ABS 2. Power supply: rechargeable lithium battery 3000mah 3. Save with history 4. Near the warning line buzzer alarm on/off 5. Temperature unit between celsius and fahrenheit switch 6. PM2.5 sensor 7. Technology: laser scattering 8. HCHO/TVOC: electrochemical sensor 9. Temperature and humidity sensors 10. 4.3-inch LCD display, 24-hour real-time monitoring 11. Detection range: AQI (0-500) PM2.5 (0-999 ug/m3); HCHO (0.001-1.999Mg/m3); TVOC (0.001-9.999Mg/m3) 12. Weight: 220 grams 13. Dimensions: 132.5x79x82.3mm Packing list: - Host x 1 - Manual x 1 - Charging cable x 1