# Change the LED Settings on your Sensors

**URL:** <https://community.purpleair.com/t/change-the-led-settings-on-your-sensors/612>\
**Category:** Announcements\
**Created:** [May 10, 2022, 4:52pm UTC](https://community.purpleair.com/t/change-the-led-settings-on-your-sensors/612 "2022-05-10T16:52:28Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![PurpleAir](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/purpleair/32/176_2.png) [@PurpleAir](https://community.purpleair.com/u/PurpleAir)\
**Post date:** [May 10, 2022, 4:52pm UTC](https://community.purpleair.com/t/change-the-led-settings-on-your-sensors/612/1 "2022-05-10T16:52:29Z")

</div>

With a new update to the PurpleAir registration page, you can access settings for the LEDs on your PurpleAir devices. You can turn the LEDs on and off and change their brightness with these settings. The LEDs that can appear on a PurpleAir sensor are the full-color AQI indicator, the red power indicator, and the green and blue SD card status indicators.

* * *

## LED Settings

The settings for the LEDs can be found in the **Onboard LED Options** section on the [registration page](https://www.purpleair.com/register). The following options in **bold** can be selected in the **LED Mode** field:​  
​  
**Off, NO LED’s:**  
This option will turn all the indicator LEDs off.

**Power, SD Status Only (FLEX Sensors):**  
This option is only valid for PA-II-FLEX sensors. This option will turn off the full-color AQI indicator and turn on the power and SD card status indicators.

**Full Color AQI Only:**  
This option will turn off the power and SD card status indicators and turn on the full-color AQI indicator.

**Power, SD Status and Full Color AQI:**  
This option will turn all the indicator LEDs on.  
​  
​The next field in the **Onboard LED Options** is **LED Brightness (%)**. By default, this option is set to 35. Changing this option will change the brightness of all the LEDs on your device.

* * *

## Learn More

[Q: Why are my sensor’s LEDs blue?](https://community.purpleair.com/t/q-why-are-my-sensors-leds-blue/7708)  
[PurpleAir Sensors Functional Overview](https://community.purpleair.com/t/purpleair-sensors-functional-overview/150)  
[What Do PurpleAir Sensors Measure and How Do They Work?](https://community.purpleair.com/t/what-do-purpleair-sensors-measure-and-how-do-they-work/3499)