> 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-lt-english-v1/caution.md).
# ⚠ Caution
* Installation of this system and compliance with all safety requirements are the responsibility of the installer.
* Wires connected to the 6-pin quick connector must be **22–12 AWG copper conductors**.
* Tighten the locking nut of the 6-pin quick connector only until a clear stop is felt. **Do not overtighten.**
* Clean the product label periodically using **only a dry, lint-free cloth**.
* Unused wires must be individually insulated with appropriate insulating material to prevent **electric shock, short circuits, or equipment damage**.
* During normal operation, the enclosure temperature may rise to levels that can cause burns.
* Allow the device to cool before handling, or wear appropriate heat-resistant personal protective equipment (such as insulated gloves).\
Failure to follow this precaution may result in personal injury.
{% hint style="info" %}
### Important Notice:
* This product measures flow by detecting the ultrasonic time-of-flight (ToF) difference between upstream and downstream directions on the outside of the pipe. Avoid fluids containing air bubbles, solid particles, crystals, or sediment, as these may affect measurement stability. Keep the main unit away from strong electromagnetic fields wherever possible.
* Unused wires **must be individually insulated** with appropriate insulating material to prevent **electric leakage, short circuits, equipment damage, and electric shock**.
* **Always disconnect the power supply before performing any electrical wiring** to avoid damage to electronic components and the risk of electric shock or leakage.
* Do not hold down any button for an extended period, as this will cause button damage.
* The electronic components of this product will age over time depending on usage conditions. After extended use and beyond the warranty period, replace the unit as appropriate based on its condition.
* Do not operate the product for prolonged periods with the LCD backlight in the **orange or red** state, as this may cause equipment damage and associated losses.
* Do not place the screen in a position exposed to **direct sunlight or other UV light sources**.
* Do not install the flowmeter in **high-vibration environments**. Prolonged vibration **may cause damage** to the wiring and adapter. Such damage is not covered under the product warranty.
{% endhint %}
---
# 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-lt-english-v1/caution.md?ask=&goal=
```
`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.