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Indoor air quality sensor

Radionode RN320-PMT LoRaWAN decoder and payload format

The Radionode RN320-PMT is a LoRaWAN indoor air quality sensor that reports temperature, humidity, light, PM2.5, PM10, TVOC, CO2 and CO. It runs on a replaceable 2X3.6V Li-SOCL2 (17000mAh) battery and it works from -20 to 80 °C.

Radionode RN320-PMT
Official decoderDatasheetProduct page

Payload format

An uplink from the device as it arrives at the network server, and what the official decoder returns for it. Examples come from the decoder's own test cases.

Example 1 · fPort 88

Payload (hex)

0C 21 00 8D F3 0A 68 01 17 00 17 00 DB 02 1F 00 90 01 00 00 0B 0A D9 07

Decoded (JSON)

{
  "head": 12,
  "model": 33,
  "tsmode": 0,
  "timestamp": 1745548173,
  "splfmt": 1,
  "data_size": 16,
  "pm25": 23,
  "pm10": 23,
  "lux": 731,
  "hcho": 31,
  "co2": 265,
  "co": 0,
  "temperature": 2571,
  "humidity": 2009
}
FieldValue
head12
model33
tsmode0
timestamp1745548173
splfmt1
data_size16
pm2523
pm1023
lux731
hcho31
co2265
co0
temperature2571
humidity2009

Example 2 · fPort 88

Payload (hex)

0D 21 00 8D F3 0A 68 01 17 00 17 00 DB 02 1F 00 90 01 00 00 0B 0A D9 07

Decoded (JSON)

{
  "head": 13,
  "model": 33,
  "tsmode": 0,
  "timestamp": 1745548173,
  "splfmt": 1,
  "data_size": 16,
  "pm25": 23,
  "pm10": 23,
  "lux": 731,
  "hcho": 31,
  "co2": 265,
  "co": 0,
  "temperature": 2571,
  "humidity": 2009
}
FieldValue
head13
model33
tsmode0
timestamp1745548173
splfmt1
data_size16
pm2523
pm1023
lux731
hcho31
co2265
co0
temperature2571
humidity2009

Specifications

Manufacturer
Radionode
Model
RN320-PMT
Type
Indoor air quality sensor
Measures
temperature, humidity, light, PM2.5, PM10, TVOC, CO2, CO
Battery
2X3.6V Li-SOCL2 (17000mAh) (replaceable)
Operating temperature
-20 … 80 °C
LoRaWAN regions
EU863-870

Connect it to Cloud Studio IoT

  1. 1

    Register the device in your network server

    Add it to The Things Stack, ChirpStack, Actility ThingPark or LORIOT with its DevEUI, JoinEUI and AppKey and the frequency plan of your region.

  2. 2

    Apply the decoder

    In The Things Stack, pick the model from the device repository and its decoder is applied for you. In ChirpStack v4, paste the official decoder as the device profile's JavaScript codec.

  3. 3

    Connect the network server to Cloud Studio IoT

    Set up the integration once per network server; every device registered there then reaches Cloud Studio IoT with its decoded values.

  4. 4

    Build dashboards and alarms

    The decoded fields become device variables for dashboards, alarms by email or SMS, and scheduled reports.

See your Radionode RN320-PMT on a dashboard

Start a free trial, add the device with its DevEUI and get dashboards and alarms from its next uplink.

Talk to us

Frequently asked questions

Device facts and decoder examples: The Things Network Device Repository (Apache-2.0) · commit 7693223, imported 2026-10-05.