> For the complete documentation index, see [llms.txt](https://docs.eseye.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eseye.com/hera604/reference/safety-information.md). # Safety information Follow the installation, power, antenna, and RF safety requirements. ## Safety information Read these requirements before installing or using the Hera 604. {% hint style="danger" %} Never rely on cellular connectivity for life-critical communications. {% endhint %} ### Installation environment * Keep the router away from direct sunlight and heat sources. * Do not enclose the router where heat can accumulate. * Avoid dust, industrial residue, liquids, and airborne particles. Install the router within one metre of mains power. Mount the router no higher than two metres. ### Antennas and RF Keep supplied antennas indoors. Use lightning protection with any outdoor antenna. Keep cellular antennas one metre from people during normal use. Do not use the router where RF equipment is prohibited. Do not use it on aircraft. Avoid flammable gases and blasting operations. Check local rules in healthcare facilities. Test for interference before permanent installation. ### Power safety Use an approved Limited Power Source adapter only. The adapter must comply with IEC/UL 60950-1 or IEC/UL 62368-1. Do not modify the mains adapter. --- # 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.eseye.com/hera604/reference/safety-information.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.