Overview The SDS011 using principle of laser scattering can get the particle concentration between 0 3 to 10um in the air It with digital output and built in fan is stable and reliable Characteristics 1 Accurate and Reliable laser detection stable good consistency 2 Quick response response time is less than 10 seconds when the scene changes 3 Easy integration UART output or IO output can be customized fan built in 4 High resolution resolution of 0 3ug m3 Scope of application PM2 5 DetectorPurifierAir ExchangersFiltering systemWorking principle Using laser scattering principle Light scattering can be induced when particles go through the detecting area The scattered light is transformed into electrical signals and these signals will be amplified and processed The number and diameter of particles can be obtained by analysis because the signal waveform has certain relations with the particles diameter Technical Parameters No ItemParameter1Measuring outputPM2 5 PM102Range0 0 999 9 ug m33Power supply voltage5V4Maximum working current100mA5Sleep current2 mA6Operating temperature range 20 50℃7Response time1s8Serial data output frequency1 time s9Particle diameter resolutionLess than 0 3um10Relative error10 11Product size71x70x23mm Interface specification PinNameexplain1CTLControl pin reserved21um0 3 Micron particle concentration PWM Output35V5V power input425um2 5 Micron particle concentration PWM Output5GNDGND6RSerial port receiver RX7TSerial port transmissi