Description: Why we need a Air Quality Detector? The average person sends approximately 90% of their time indoors. Studies have indicated that indoor air is often dirtier and/or contains higher levels of contaminants than outdoor air. Because of this, we need a professional air quality detector to check whether our living environment is healthy or not. Specification: Model type: DM106C Test item: HCHO, TVOC Product Dimension: 6.4*2.8*1.7inch Detection principle: Semiconductor sensing technology Display: LED Battery Capacity: 800mAh Lithium Battery Input: 5.0V/500mA , USB Charging Storage Temperature: -20℃-50℃ Test Range: HCHO: 0-1.999 mg/m3 TVOC: 0-9.999 mg/m3 Please be noted: - Read the user manual before use. - Do calibration before detection, turn on the detector, put it in fresh air for 10 minutes, then press the calibration button for 2 seconds, calibration is finished. Normally, we do not need calibrate it for every time use, however, it is sometimes be affected by other gases, so , it is better to calibrate it before use each time for accurate result, please refer to user manual for details. - Read the testing results after 5 minutes detection. - If the item is in low battery, the data may be inaccurate, please charge the detector via USB cable, when charging, the red light at the left top will flash, after the electricity is full, the red light will stop flash. Package included: 1 x Multifunction Air Quality Detector 1 x User Manual 1 x USB Charging Cable. 1 x Qualify Certificate
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