# Guarantee As we sell B2B, the standard guarantee is 1 year under the condition of proper usage, device settings and not exceeding operational temperature. Extended guarantees can be purchased at an extra cost of 7 percent per additional year. --- # Agent Instructions: 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: ``` GET https://ask.simplehw.eu/kb/how-to-purchase-the-devices/guarantee.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.