Header Descriptions
UTCDateTime: The Date and time derived from the Real Time Clock and synced with NTP where possible (in UTC).
Mac_address: The MAC address of the WiFi module on the sensor (used as an ID for the unit).
Firmware_ver: Firmware version of the control board.
Hardware: Hardware the control board has detected.
current_temp_f: Current temperature in F.
Current_humidity: Current Humidity in %.
Current_dewpoint_f: Calculated dew point in F.
Pressure: Current pressure in millibars.
Adc: The voltage reading on the analog input of the control board.
Mem: Free HEAP memory on the control board.
Rssi: WiFi signal strength in dBm
Uptime: Firmware uptime in seconds.
Pm1_0_atm: Channel A ATM PM1.0 particulate mass in ug/m3
Pm2_5_atm: Channel A ATM PM2.5 particulate mass in ug/m3
Pm10_0_atm: Channel A ATM PM10.0 particulate mass in ug/m3
Pm1_0_cf_1: Channel A CF=1 PM1.0 particulate mass in ug/m3
Pm2_5_cf_1: Channel A CF=1 PM2.5 particulate mass in ug/m3
Pm10_0_cf_1: Channel A CF=1 PM10.0 particulate mass in ug/m3
P_0_3_um: Channel A 0.3 micrometer particle counts per deciliter of air
P_0_5_um: Channel A 0.5 micrometer particle counts per deciliter of air
P_1_0_um: Channel A 1.0 micrometer particle counts per deciliter of air
P_2_5_um: Channel A 2.5 micrometer particle counts per deciliter of air
P_5_0_um: Channel A 5.0 micrometer particle counts per deciliter of air
P_10_0_um: Channel A 10.0 micrometer particle counts per deciliter of air
Pm1_0_atm_b: Channel B ATM PM1.0 particulate mass in ug/m3.
Pm2_5_atm_b: Channel B ATM PM2.5 particulate mass in ug/m3
Pm10_0_atm_b: Channel B ATM PM10.0 particulate mass in ug/m3
Pm1_0_cf_1_b: Channel B CF=1 PM1.0 particulate mass in ug/m3
Pm2_5_cf_1_b: Channel B CF=1 PM2.5 particulate mass in ug/m3
Pm10_0_cf_1_b: Channel B CF=1 PM10.0 particulate mass in ug/m3
P_0_3_um_b: Channel B 0.3 micrometer particle counts per deciliter of air
P_0_5_um_b: Channel B 0.5 micrometer particle counts per deciliter of air
P_1_0_um_b: Channel B 1.0 micrometer particle counts per deciliter of air
P_2_5_um_b: Channel B 2.5 micrometer particle counts per deciliter of air
P_5_0_um_b: Channel B 5.0 micrometer particle counts per deciliter of air
P_10_0_um_b: Channel B 10.0 micrometer particle counts per deciliter of air
PA-II NOTES:
Each sensor contains two identical laser counters, hence channel A and B. If these two channels do not agree to some extent then there is something wrong with one or both channels.
Plantower PMS sensor notes:
ATM is "atmospheric", meant to be used for outdoor applications
CF=1 is meant to be used for indoor or controlled environment applications
However, PurpleAir uses CF=1 values on the map. This value is lower than the ATM value in higher measured concentrations.