# What is the Grow Sensor? It measures essential grow room conditions and supports substrate probes to track EC, water content, and root zone temperature. Built for accuracy and reliability, the Grow Sensor offers flexible power options - running on battery or via USB. It’s WiFi-enabled and features offline data logging to ensure no data loss during internet outages. It's compact, feature-packed, and intelligent, designed for all types of growers, from micro-grows to large-scale operations. Whether you need near real-time data for precision growing or a reliable backup for environmental tracking, the Grow Sensor helps you dial in the perfect conditions for healthier plants and bigger yields. --- # 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://faq.growsensor.co/welcome/what-is-the-grow-sensor.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.