PM2.5+PM10+Temp+Humi Indoor RS485 output

Technical parameter

• Power supply : 12V-24VDC
• Average Current : <85 mA
• PM2.5/10 Detect Range : 0-1000ug/m 3
• PM2.5/10 Accuracy : <Reading ±10%(25°C)
• Temperature Detect Range : -40°C-80°C
• Temperature Accuracy : ±0.5°C
• Humidity Detect Range : 0-100 %RH
• Humidity Accuracy : ±3%RH
• Stability : <2%F·S
• Non-linear : <1%F·S
• Response Time : ≤120S
• Pre-heat time : 2min(Work)10min(Max Accuracy)
• Output Signal : RS485
• Power Consumption : ≤1.2W(@12V DC, 25°C)
• Working Air Pressure : 0.9-1.1atm

Interface Description

          Before you wiring and use, please read this article in detail, Improper use may result in irreversible damage to the product.

Communication protocol

Register Address

Communication example

          Read Device Address 0x01's PM2.5 Value

Inquiry Frame

 Answer Frames

How to calculate PM2.5

          0006 H(Hexadecimal)= 6 => PM2.5 = 6ug/m3

Read Device Address 0x01's PM10 Value

Inquiry Frame

 Answer Frames

How to calculate PM10

          0007H(Hexadecimal) = 7 => PM10 = 7ug/m3

Read Device Address 0x01's PM2.5/10 value

Inquiry Frame

 Answer Frames

How to calculate PM2.5/PM10

          PM 2.5 : 0005 H(Hexadecimal)= 5 => PM2.5 = 5ug/m3

          PM 10 : 0005 H(Hexadecimal)=5=>PM10=5ug/m3

Read the temperature and humidity PM2.5/10 concentration value of the device address 0x01

Inquiry Frame

 Answer Frames

How to calculate PM2.5/PM10

          Temperature : 0134 H (hexadecimal)= 308 => temperature=30.8°C

          Humidity: 023A H (hexadecimal)=570=>humidity=57.0%RH

          PM 2.5 : 0007 H(Hexadecimal)= 7 => PM2.5 = 7ug/m3

          PM 10 : 0007 H(Hexadecimal)= 7 => PM10 = 7ug/m3