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Features:● 3.1 inch resolution 720 x 720 retina-level super clear IPS screen, 15 degrees elevation angle● Internal use of quad-core A7 processor, multi-mode compensation algorithm, more accurate measurement● Capacitive touch operation screen, automatic brightness adjustment, innovative ven..

Feature:Product Name: PM2.5 TesterMeasuring principle: Principle of scatteringPM2.5 measurement range: 0-999ug/m³Accuracy: ± ug / m³Response time: <5 secondsBattery capacity: 500 mAhStandby time: >6 monthsContinuous working hours: >4 hoursDimen..

Features: Smart memory calibration. Dual chip design. Formaldehyde/TVOC detection does not interfere with each other for accurate detecting effect. Can be used for testing the effect of air purifiers and ventilation system. Laser sensor for precise detection. In..

Features:   Advanced technology of Laser Sensor Detection, detect PM2.5 in Air and transform into digital display accurately, show different healthy level warning in different color. Excellent for daily air quality monitoring. Detect PM2.5 by laser scanning, giving results more ..

Features:   Advanced technology of Laser Sensor Detection, detect PM2.5 in Air and transform into digital display accurately, show different healthy level warning in different color. Excellent for daily air quality monitoring. Detect PM2.5 by laser scanning, giving results more ..