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Level and distance sensor

Elsys ELT Ultrasonic LoRaWAN decoder and payload format

The Elsys ELT Ultrasonic is a LoRaWAN level and distance sensor that reports temperature, humidity, acceleration and pressure. It runs on a replaceable AA battery and it works from -40 to 60 °C.

Elsys ELT Ultrasonic
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)

01 00 E2 02 29 03 01 27 05 14 06 01 01 11 0E 23 11

Decoded (JSON)

{
  "temperature": 22.6,
  "humidity": 41,
  "x": 1,
  "y": 39,
  "z": 5,
  "pressure": 100729.105,
  "distance": 8977
}
FieldValue
temperature22.6
humidity41
x1
y39
z5
pressure100729.105
distance8977

Specifications

Manufacturer
Elsys
Model
ELT Ultrasonic
Type
Level and distance sensor
Measures
temperature, humidity, acceleration, pressure
Battery
AA (replaceable)
Operating temperature
-40 … 60 °C
LoRaWAN regions
EU863-870, US902-928, AS923, 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 Elsys ELT Ultrasonic 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.