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Features: Large screen display makes it easier to read data, and the mirror effect is more gorgeous. Four independent sensors, high precision, fast response, strong anti-interference ability. The USB rechargeable design is easy to use and can extend the service life. Measurement items: HCHO, VOC, PM2.5, PM10, PM1.0, air quality index, temperature. Real-time monitoring, one second response, memory calibration, can display formaldehyde better or poor, air quality better or poor, battery power. Specifications: Material: ABS Model: LB-S08 Color: white+black Test items: formaldehyde, VOC, air quality index, PM2.5, PM10, PM1.0, temperature Test range: Formaldehyde: 0.001-1.000mg/m³ VOC: 0.001-4.000mg/m³ Air quality index (AQI): 0-500 PM2.5: 1-999μg/m³ PM10: 1-999μg/m³ Temperature: 0-60℃ Test time: 5 minutes Test method: sensor Concentration: mg/m³ μg/m³ Sample gathering: air flow Working temperature: 0~45℃ Working humidity: