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Indoor air quality sensor

Sting Pengy LoRaWAN decoder and payload format

The Sting Pengy is a LoRaWAN indoor air quality sensor that reports particulate matter, PM2.5, PM10, temperature, humidity, pressure and sound level.

Sting Pengy
Official decoderProduct 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 2

Payload (hex)

01 29 01 23 00 7D 00 6F 03 DD 00 2D 00 05 00 64 24 85

Decoded (JSON)

{
  "EAQI": "Fair",
  "FPM": 11,
  "RPM": 13,
  "Temperature": 29.1,
  "Humidity": 29.7,
  "Pressure": 989,
  "Noise": 93.49,
  "CO": 45,
  "NH3": 5,
  "NO2": 1,
  "Version": "1.5"
}
FieldValue
EAQIFair
FPM11
RPM13
Temperature29.1
Humidity29.7
Pressure989
Noise93.49
CO45
NH35
NO21
Version1.5

Example 2 · fPort 3

Payload (hex)

01 01 01 50 03 CA 00 59 00 5F 00 5F 21 89

Decoded (JSON)

{
  "EAQI": "Fair",
  "RPM": 10,
  "FPM": 10,
  "UPM": 9,
  "Temperature": 33.6,
  "Humidity": 25.7,
  "Pressure": 970,
  "Noise": 85.85,
  "Version": "2.0"
}
FieldValue
EAQIFair
RPM10
FPM10
UPM9
Temperature33.6
Humidity25.7
Pressure970
Noise85.85
Version2.0

Specifications

Manufacturer
Sting
Model
Pengy
Type
Indoor air quality sensor
Measures
particulate matter, PM2.5, PM10, temperature, humidity, pressure, sound level
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 Sting Pengy 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.