Feature: 1. AUTOMATIC SCREEN REST: The air quality detector adopts clear digital display, and can automatically turn off the screen in case of no one using it to reduce energy consumption. 2. DETECTION PARAMETERS: This air quality monitor can detect PM2.5, HCHO, TVOC, and CO2 parameters, with a wide measurement range, which is convenient and practical. 3. HEAT DISSIPATION HOLE: The air monitoring detector adopts scientific mesh design, greatly improving heat dissipation performance and ensuring accurate detection data. 4. HIGH ACCURACY: Using smart air infrared semiconductor sensor to detect the air temperature and humidity values, the detection result is sensitive, accurate, and stable. 5. APPLICABLE SCENE: This air detector is suitable for environmental testing of new cars, new homes, mother and baby rooms, kids rooms, offices, hotels, and camping tent. Specification: Item Type: Air Quality Detector Material: ABS Battery: 3.7V 1200mAh Lithium Battery (built in battery) Basic Parameters: PM2.5: 0-999ug/m³ HCHO: 0-1999ug/m³ TVOC: 0-1999ug/m³ CO2: 400-5000PPM. Package List: 1 x Air Detector 1 x USB Cable 1 x User Manual