> For the complete documentation index, see [llms.txt](https://enless.gitbook.io/centre-aide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enless.gitbook.io/centre-aide/guides-installation/documentation-en/sensors/editor-6/use/power-supply-and-battery.md).

# Power supply and battery

TX WINDOW: power supply and battery

The TX WINDOW offers a power supply mode on **Battery**; use the supplied battery for optimal battery life. To activate the sensor, simply remove the insulating tab.

## Initial setup

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TX WINDOW power activation is carried out by removing the protective tab from the built-in battery.
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## Battery replacement

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To replace the TX WINDOW battery, you must first remove the sensor from its mount and clear access to the battery.
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Don’t forget to remove the screw, otherwise the sensor cannot be opened!
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The TX WINDOW uses a 2/3AA 3.6 V lithium battery.

If your sensor was still operating but with a weak battery, it will continue to function without any action from you.

If, on the other hand, the sensor had no battery left, it will then restart.


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