Description:

Indicator light:

• When the indicator light value is less than 150 meanwhile the green D2 light turns on, the surrounding environment is relatively healthy.
• When the indicator light value is greater than 200 less than 400 meanwhile the yellow D1 light turns on, the surrounding environment is moderate pollution.
• When the indicator light value is greater than 400 less than 700 meanwhile the red D3 light turns on, the surrounding environment is severe pollution.
• When the indicator light value is greater than 800 meanwhile all light turns on, the surrounding environment is serious pollution.

Key:

• To enter the compensation settings by pressing the button one time,short press plus 1,long press continuous plus 1,Numerical range -50~+50.To automatically exit after a few seconds.
• PCB size: 67x64x24mm
• Power supply requirements: 5V DC power supply(Use mini USB power supply)

This product uses three digital tube display, show a range of 0-999 . This product has the function of compensation, it can be adjusted according to the use of the surrounding environment.
This product uses SHARP optical dust sensor,The sensor has a very low current consumption , it's sensitivity for 0.5V/0.1mg/m3. So, our products have a very high detection accuracy, very reliable.


Package List:

• 1x SainSmart PM2.5 Air Quality Detector