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description: LEDs behavior of TX IO
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# TX IO

## <mark style="color:blue;">Phase 1 :</mark> Installation

|                        LED                       |  Behavior |                    Meaning                    |
| :----------------------------------------------: | :-------: | :-------------------------------------------: |
|  <mark style="background-color:green;">L1</mark> | Always ON |                 Powered sensor                |
|   <mark style="background-color:red;">L2</mark>  |     ON    |              Installation failed              |
| <mark style="background-color:orange;">L3</mark> |     ON    | Successful installation but weak radio signal |
|  <mark style="background-color:green;">L4</mark> |     ON    |    Successful installation and good signal    |
