> For the complete documentation index, see [llms.txt](https://faq.growsensor.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://faq.growsensor.co/the-grow-sensor/what-does-the-grow-sensors-button-do.md). # What does the Grow Sensor’s button do? The Grow Sensor is a compact yet powerful device with a range of functions at your fingertips. Its button allows you to navigate key features effortlessly. For a full breakdown of button functions and flow diagrams, [click here](https://www.figma.com/board/WWU8B2Y140AZug7zJ6ojpW/Grow-Sensor-customer-button-flow?node-id=0-1\&t=1AYRtf3VV67pDGgF-1). ### H**ow do I take an immediate reading with the Grow Sensor?** Simply hold down the button until you see a continuous green light, then release it. This triggers an instant live reading - perfect for quickly checking conditions while you're in your grow room. ### H**ow do I put the Grow Sensor into live mode?** Soon you will be able to put the grow sensor into live mode to get extra fast readings. Watch this space. ### H**ow do I turn on the Grow Sensor?** If your Grow Sensor has completely run out of battery or has been manually turned off, simply press the button to power it back on. You'll see a steady green light, indicating that it's awake and ready to go. For a full breakdown of button functions, check out the complete flow diagrams here: [Grow Sensor button flow](https://www.figma.com/board/WWU8B2Y140AZug7zJ6ojpW/Grow-Sensor-customer-button-flow?node-id=0-1\&t=1AYRtf3VV67pDGgF-1) ### H**ow do I turn off the Grow Sensor?** To power down the Grow Sensor, press and hold the button until the LED turns red, then release it. The sensor will shut off completely. When you're ready to use it again, simply press the button once to wake it up. ### H**ow do I put the Grow Sensor into Wi-Fi mode?** To enter Wi-Fi onboarding mode, press and hold the button until the LED turns blue, then release it. The sensor is now ready to be set up using the Grow App. If you need help or run into any issues, feel free to reach out to us at For a full breakdown of button functions, check out the complete flow diagrams here: [Grow Sensor button flow](https://www.figma.com/board/WWU8B2Y140AZug7zJ6ojpW/Grow-Sensor-customer-button-flow?node-id=0-1\&t=1AYRtf3VV67pDGgF-1) ### W**hy is the Grow Sensor flashing white when I press the button?** A flashing white LED means the Grow Sensor is busy processing data. Give it 15 to 30 seconds, then try again - it should be ready to respond. For a full breakdown of button functions, check out the [complete flow diagrams here](https://www.figma.com/board/WWU8B2Y140AZug7zJ6ojpW/Grow-Sensor-customer-button-flow?node-id=0-1\&t=1AYRtf3VV67pDGgF-1).
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