Features: Unique air duct design, more accurate detection. The minimum detection particles are 0.3m. Six sided shielding, strong anti-interference performances. Real-time response, support continuous collection. Ultra-thin design, features digital output and built-in fan, stable and reliable. Package Includes: 1x PMS9103M Sensor Module Specifications: Material: Metal Size: Approx. 48x40x12mm/1.89x1.57x0.47inch Model: PMS9103M Output Model Category: digital sensor Working Principle: gas sensor Applicable Scenario: purifier, fresh air fan, detector Sensor Category: air quality sensor Working Current: 0.1A Working Voltage: 5V Particle measurement range: 0.3-1.0; 1.0-2.5; 2.5-10m Effective mileage of particulate matter mass concentration (PM2.5 standard value): 50% @ 0.3 m; 98%@0.5m 0~500 Consistency of particulate matter mass concentration (PM2.5 standard value): 10% @ 100~500MCG/cubic meter; 10MCG/cubic meter @ 0~100MCG/cubic meter Single response time: less than 1s DC-power supply voltage: Typ-5.0; Min-4.5; Max-5.5Volt Operating temperature range: - 10~+60 Operating humidity range: 0~99% note: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow slight chromatic aberration due to different display resolutions.