Skip to main content
Skip to main content
Soil sensor

Decentlab DL-TRS11 LoRaWAN decoder and payload format

The Decentlab DL-TRS11 is a LoRaWAN soil sensor that reports moisture and temperature. It is rated IP67, it runs on a replaceable 2 C alkaline battery and it works from -20 to 50 °C.

Decentlab DL-TRS11
Official decoderDatasheetPartner 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 1

Payload (hex)

02 10 D5 00 03 46 3F 81 0B 0C 79

Decoded (JSON)

{
  "battery_voltage": {
    "displayName": "Battery voltage",
    "unit": "V",
    "value": 3.193
  },
  "device_id": 4309,
  "dielectric_permittivity": {
    "displayName": "Dielectric permittivity",
    "value": 1.0259018697121038
  },
  "protocol_version": 2,
  "soil_temperature": {
    "displayName": "Soil temperature",
    "unit": "°C",
    "value": 26.7
  },
  "volumetric_water_content": {
    "displayName": "Volumetric water content",
    "unit": "m³⋅m⁻³",
    "value": 0.0019605699999999393
  }
}
FieldValue
battery_voltage3.193 V
device_id4309
dielectric_permittivity1.0259018697121038
protocol_version2
soil_temperature26.7 °C
volumetric_water_content0.0019605699999999393 m³⋅m⁻³

Specifications

Manufacturer
Decentlab
Model
DL-TRS11
Type
Soil sensor
Measures
moisture, temperature
Protection
IP67
Battery
2 C alkaline (replaceable)
Operating temperature
-20 … 50 °C
LoRaWAN regions
EU863-870, AS923, US902-928, AU915-928

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 Decentlab DL-TRS11 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.