Prana Air Ambient Air Monitor

Know Your Monitor

For your reference:

1. Fan
2. Micro SD Card Slot
3. USB Power Supply
4. RS-485 Slot

The rear panel of the monitor features four labeled ports: 1. Fan, 2. Micro SD Card Slot, 3. USB Power Supply, and 4. RS-485 Slot.

How to Connect

1. Pull out the green plug from the bottom of the device.

   Illustration shows a green plug being pulled out.

2. Insert the positive and negative parts as mentioned on the plug.

   The green plug has terminals labeled 'A' and 'B'. A red wire is connected to 'A' (labeled A(+)) and a blue wire is connected to 'B' (labeled B(-)).

3. Insert the plug back into the device.

   Illustration shows the plug with wires reinserted into the device.

4. Insert the USB and power on the device.

   Illustration shows a USB cable connecting to the device's USB power port and then to a power adapter.

5. Set the parameters as follow:

   • Baud Rate: 9600
   • Data Bit: 8 Bit
   • Parity: None
   • Stop Bit: 1

6. You can check the data in the following Address on your device.

   Address (Holding Register)	Parameter	Unit
   40001	PM2.5	μg/m³ [micrograms per cubic meter]
   40002	CO₂	PPM [parts per million]
   40003	Temperature	°C [degrees Celsius]
   40004	Humidity	% [percent]
   40005	PM1	μg/m³ [micrograms per cubic meter]
   40006	PM10	μg/m³ [micrograms per cubic meter]
   40007	SO₂	PPB [parts per billion]
   40008	CO	PPB [parts per billion]
   40009	NO₂	PPB [parts per billion]
   40010	O₃	PPB [parts per billion]
   40033	H₂S	PPB [parts per billion]