Packaging Details
- Unit Type: lot (5 pieces/lot)
- Package Weight: 0.285kg (0.63lb.)
- Package Size: 12cm x 12cm x 7cm (4.72in x 4.72in x 2.76in)
The SDS018 using principle of laser scattering ,can get the particle concentration between 0.3 to 10μm 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 0.3μg/m3.
Scope of application
Detector of PM2.5;Purifier;Fresh air system and other Air purification detection testing fields.
Working 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
Power requirement
Power Voltage :4 .7~5.3V
Power supply:>1W
About service life
Service life is the key parameter of laser dust sensor. The laser diode in this sensor has high quality and its service life is up to 8000 hours. If you need real-time data (such as detector), you can use the default configuration that measures at the frequency of 1time per second. On the occasion of real-time demand is not high (such as filter, air quality monitoring, etc.), you can use the discontinuous working method to prolong the service life. For example, you can start the sensor for 30 seconds per minutes. If you have any other requirements, please contact us, we are willing to serve for manufacturers and developers.
Product specifications
Product size
L*W*H=59*45*20mm
Interface specification
PS:The distance between each pin is 2.54mm.
The UART communication protocol
Bit rate :9600
Data bit :8
Parity bit:NO
stop bit : 1
Packet frequency: 1Hz
Check-sum: Check-sum=DATA1+DATA2+...+DATA6.
PM2.5 value: PM2.5 (μg/m3) = ((PM2.5 High byte *256) + PM2.5 low byte)/10
PM10 value: PM10 (μg/m3) = ((PM10 high byte*256) + PM10 low byte)/10
PWM output description
PWM have 2 types of output. One is default ,the other is customized.
PWM output 1:(default)
Output range:
PM2.5: 0-999μg/m3
PM10: 0-999μg/m3
Port:
PM2.5-->1μm port output
PM10-->2.5μm port output
period: 1004ms +1%
Period start high time:2ms
Period time: 1000ms +1%
Period end low time:2ms
Nova PM2.5 Air particle/dust sensor SDS018, laser inside, digital output module air purifier
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