Feature:1. EXCELLENT SENSOR: The detector adopts a digital universal particle concentration sensor, and detects the concentration of formaldehyde at the same time.2. CLEAR DISPLAY: This air quality detector has an ultra clear screen, with backlight display, the reading is clear and convenient, and can be used in dark places.3. MULTIPLE BUTTONS: The detector has multiple rubber buttons, with complete functions, quick and sensitive response, and anti extrusion, not easy to deform.4. HIGH PERFORMANCE: The detection range is 0~5000ug/m, the minimum resolution of particle concentration is 0.3um, has high accuracy and good stability.5. APPLICABLE PLACES: Widely used for qualitative detection of formaldehyde in the air, suitable for indoor, residential areas, public places and workshops, etc.Specification:Item Type: Air Quality DetectorModel: 8804Material: ABS, RubberPlug: EU Plug AC100-240VBattery: 1.5V AAA x 3 (not included)Uses: Widely suitable for on site quantitative detection of formaldehyde in the air of living rooms, indoors, residential areas, public places, living places and factories and mines.Basic Parameters: Detection Range: 0~5000ug/mMinimum Reading of Particle Concentration: 1ug/mResolution: 1ug/mMinimum Resolution of Particle Concentration: 0.3umResponse Time: 10s.Package List:1 x Detector1 x Power Adapter1 x User Manual