> For the complete documentation index, see [llms.txt](https://docs.lorric.com/qr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lorric.com/qr/fu-es-echosense-instruction-manual/manual-version-2-0/firmware-version.md).

# Firmware Version

{% updates format="full" %}
{% update date="2026-02-26" %}

## Firmware Version: P1205

{% endupdate %}

{% update date="2024-08-01" %}

## **Firmware Version: P1203**

<details>

<summary><strong>Updates</strong></summary>

* **Improvement I**:
  * Added the Hybrid1 main screen.
  * Enhanced Modbus RTU functionality for large numbers (dosing/totalizer) and support for int64 data format:
    * **Command 04**: Enables reading of int64 large numbers.
    * **Command 03**: Enables reading of int64-related configuration parameters.
    * **Command 31**: Introduced a new 64-bit parameter write command. Modbus RTU now supports data reading for dosing.
* **Improvement II**:
  * Corrected default pipeline size string and improved cumulative precision when cumulative values are extremely large.
  * Fixed an issue where an incorrect password entry displayed abnormally on the main screen when the password feature was enabled.
  * Resolved a data error when the time unit for instantaneous flow rate was set to "day."

</details>
{% endupdate %}

{% update date="2024-08-01" %}

## **Firmware Version: 1.202**

<details>

<summary><strong>Updates</strong></summary>

**Improvement**:

* Added Modbus RTU commands 03, 06, and 30 to enable remote parameter configuration.

</details>
{% endupdate %}
{% endupdates %}

***


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.lorric.com/qr/fu-es-echosense-instruction-manual/manual-version-2-0/firmware-version.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.