=============== Connect a Scale =============== When using your **IoT Box** in Odoo, you could need to use a scale. Doing so is easy and convenient as it can be done in a few steps. Then, you can use it in your **Point of Sale app** to weigh your products, which is helpful if their price are based on it. Connection ========== To link the scale to the **IoT Box**, connect them with a cable. .. note:: In some cases, a serial to USB adapter may be needed. If your scale is `compatibale with Odoo IoT Box `_, there is no need to set up anything because it will be automatically detected as soon as it is connected. .. image:: scale/iot-choice.png :align: center :alt: IOT box auto detection. You may need to restart the box and download your scales’ drivers from the box in some cases. To do so, go to the *IoT Box Home Page* and click on *drivers list*. Then, click on load drivers. .. image:: scale/driver-list.png :align: center :alt: View of the IoT box settings and driver list. Use a Scale in Point of Sale ============================ To use the scale in your *Point of Sale* app, go to :menuselection:`Point of Sale --> Configuration --> Point of Sale`, open the one you want to configure, then click on *Edit* and enable the *IoT Box* feature. .. image:: scale/iot-box-pos.png :align: center :alt: View of the IoT box feature inside of the PoS settings. Now, choose the *IoT Box* in the dropdown menu and check the *Electronic Scale* option. Then, you hit save. .. image:: scale/electronic-scale-feature.png :align: center :alt: List of the external tools that can be used with PoS and the IoT box. The scale is now available in all your *PoS* sessions. Then, if a product has a price per weight set, clicking on it on the *PoS* screen opens the scale screen, where the cashier can weigh the product and add the correct price to the cart. .. image:: scale/scale-view.png :align: center :alt: Electronic Scale dashboard view when no items are being weighed.