# Overview The Efento Gateway is a network device designed to collect and transfer data from Efento wireless loggers to Efento Cloud or other cloud platforms/servers. The gateway is available in **two variants**: * **LTE - Bluetooth Low Energy** * **Ethernet - Bluetooth Low Energy** Both versions support up to 128 wireless loggers and feature onboard memory capable of storing up to 500,000 measurements. The gateway not only receives current logger readings but can also **download historical data stored in the loggers’ internal memory**, ensuring no measurements are lost. In the event of a network outage, the gateway automatically retries transmission and sends any missing data once the connection is restored. Data is transmitted to the server using the **REST protocol** (HTTPS or optionally HTTP). To ensure secure operation, the Gateway uses **AES128 encryption** for communication between loggers and the gateway, and **TLS/SSL** for communication between the gateway and the server. Additional features include **proxy server support** and **authorization via custom HTTP headers**. Wireless communication range is up to **100 meters** in open areas and **20–30 meters indoors**, depending on building structure. The Efento Gateway can be easily configured using the free Efento mobile application. ## Markings You may find the following symbols on the Efento Gateway or its packaging:
CE Mark of Conformity: Indicates compliance with the Radio Equipment Directive (RED) 2014/53/EU.
Dustbin Symbol: Efento products should not be disposed of with household waste. Please dispose of them according to local laws and regulations.
RoHS Symbol: Indicates compliance with the RoHS Directive 2002/95/EC.
## Liability The information provided in this operating manual describes the product’s functions and intended use but does not constitute a guarantee of specific performance or features. Efento shall not be held liable for any damage, malfunction, or loss resulting from, but not limited to: * **Improper or unintended use** of the device. * **Failure to follow the instructions** and safety guidelines described in this manual. * **Unauthorized modifications, alterations, or tampering** with the Efento Gateway or its components. * **Improper installation, handling, or operation** of the device. * **Unauthorized repairs or attempts to service** the device by persons not certified by Efento. * **Use of incompatible accessories, power supplies, or antennas.** * **Damage caused by accidents, external factors, or environmental conditions**, including but not limited to moisture, extreme temperatures, or mechanical shock. * **Events classified as force majeure**, such as natural disasters, power surges, lightning, or other situations beyond the manufacturer’s control. * **Operation outside the specified technical parameters** or use in environments not recommended for the device. These exclusions ensure clarity on the conditions under which warranty and liability may be voided. Please follow all guidelines to ensure safe and reliable operation of the Efento Gateway. ## Manufacturer Efento sp. z o.o., Ul. Przemysłowa 12, 30-701 Krakow, Poland ## Technical support * We encourage you to read this manual thoroughly to fully understand and leverage all the features of Efento Gateways. * If you have any questions while using the Gateway, start by asking our AI assistant (Type your question into the search field in the page header and click **Ask**). * If you can’t find an answer, our support team is ready to help at [help.efento.io](https://help.efento.io).
--- # 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://docs.efento.io/efento-gateways/important-information/overview.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.