PM2.5 laser dust sensor

PM2.5 laser dust sensor is a digital universal particle concentration sensor,it can be used to obtain the number of suspended particulate matter in a unit volume of air within 0.3 to 10 microns, namely the concentration of particulate matter, and output with digital interface, also can output quality data of per particle. The Air Quality sensors can be embedded in a variety of concentrations of environment-related instruments suspended particulate matter in the air,to provide timely and accurate concentration data. 
    Operating voltage :4.95 ~ 5.05V
    Maximum electric current: 120mA
    Measuring pm diameter: 0.3~1.0?1.0~2.5?2.5~10(um)
    Measuring pm range:0~500 ug/m3
    Standby current: ?200 uA
    Response time: ?10 s
    Operating temperature range:: -20 ~ 50C
    Operating humidity range: 0 ~ 99% RH
    Maximum size: 65 × 42 × 23 (mm)
    MTBF: >= 5 years
    Quick response
    Standard serial input word output
    Second-order multi-point calibration curve
    The minimum size of 0.3 micron resolution
Power supply quality requirements:
    Voltage ripple: less than 100mV.
    The power supply voltage stability: 4.95 ~ 5.05V.
    Power supply: more than 1W (5V@200mA).
    The upper and lower electric voltage surge is less than 50% of the system power supply voltage.

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