> For the complete documentation index, see [llms.txt](https://support.senterasensors.com/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.senterasensors.com/home/6x-series-sensors-user-guide/reflectance-panel/specifications.md).

# Specifications

## Panel Types & Coefficients

Sentera has sold four reflectance panel models, with different coefficients for each band. Check the cover of your panel to verify which coefficients you should use. You can also consult the image on the inside of your panel to determine which version you have, and use the following values.

{% tabs %}
{% tab title="Type 4" %}

<div data-with-frame="true"><figure><img src="/files/NsVEit2BHeCVW8n9YsZs" alt="" width="375"><figcaption></figcaption></figure></div>

## Coefficients

| Channel               | Value  |
| --------------------- | ------ |
| Blue (475nm)          | 0.1060 |
| Green (550nm)         | 0.1048 |
| Red (670nm)           | 0.1031 |
| Red Edge (715nm)      | 0.1027 |
| Near Infrared (840nm) | 0.1020 |
| {% endtab %}          |        |

{% tab title="Type 3" %}

<div data-with-frame="true"><figure><img src="/files/WAScB7bqlavXmBlKJrtC" alt="" width="375"><figcaption></figcaption></figure></div>

## Coefficients

| Channel               | Value  |
| --------------------- | ------ |
| Blue (475nm)          | 0.1007 |
| Green (550nm)         | 0.0998 |
| Red (670nm)           | 0.0987 |
| Red Edge (715nm)      | 0.0986 |
| Near Infrared (840nm) | 0.0980 |
| {% endtab %}          |        |

{% tab title="Type 2" %}

<div data-with-frame="true"><figure><img src="/files/C2tF21vBDMK9WVaEgy6f" alt="" width="375"><figcaption></figcaption></figure></div>

## Coefficients

| Channel               | Value  |
| --------------------- | ------ |
| Blue (475nm)          | 0.1116 |
| Green (550nm)         | 0.1099 |
| Red (670nm)           | 0.1079 |
| Red Edge (715nm)      | 0.1071 |
| Near Infrared (840nm) | 0.1050 |

{% endtab %}

{% tab title="Type 1" %}

<div data-with-frame="true"><figure><img src="/files/taNiOFrJY6yyzBqQ3u6D" alt="" width="375"><figcaption></figcaption></figure></div>

## Coefficients

| Channel               | Value  |
| --------------------- | ------ |
| Blue (475nm)          | 0.1059 |
| Green (550nm)         | 0.1054 |
| Red (670nm)           | 0.1052 |
| Red Edge (715nm)      | 0.1052 |
| Near Infrared (840nm) | 0.1055 |
| {% endtab %}          |        |
| {% endtabs %}         |        |

{% hint style="info" %}
These values only apply to the reflectance panels provided by Sentera.
{% endhint %}