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Import Shipping Weights from a USB Scale

Import weights from your scale | Ensure accuracy

Written by Dan Coleman

Updated at January 12th, 2026

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In This Article

Quick Tip Video Before We Begin Read Weights from Your Scale Connecting the Scale Weight Units Scale Frequently Asked Questions I don't see a Scale icon in the Weight field in the Dock and I cannot read weights from my scale. I have two scales connected to my device. Postsale seems to have connected to the wrong one. Can I reconnect to the correct scale?

Save time and reduce manual entry by connecting a USB postage scale and importing package weights directly into Postsale. By importing weights from a scale, you increase accuracy, prevent costly shipping errors, and speed up label generation so you can get orders out the door faster.

This article will guide you through connecting your scale to Postsale and show you how to import weights when configuring your shipments.

Quick Tip Video

We also have a Quick Tip video that. covers the information in this help article.

 
 

Before We Begin

For proper scale connectivity and accurate scale readings:

  • We recommend running Postsale in Chrome
  • The scale must connect via USB 
  • The scale must support HID (Human Interface Device)

Please be sure that:

  • The scale is connected to a USB port on your computer or device
  • The scale is powered on

Read Weights from Your Scale

  1. Select at least one order you wish to ship.
  2. Open the Dock.
  3. Click the Scale icon in the Weight field of the Package section.

    An order has been selected and the shipment is shown in the Dock. The scale button is being clicked.

Connecting the Scale

You may be presented with a prompt asking you to connect the HID device. The prompt you are presented with will differ slightly depending on the scale you are connecting.

Select the scale from the list of available HID devices and select the option to connect it.  Here's an example:

An example of a scale being selected and the option to connect to it is being clicked.

 

 

  1. Place the package on the scale. The weight the scale is reading is displayed next to the scale icon in the Weight field.
    The displayed weight updates in real time as the weight on the scale changes.

    The scale button is highlighted in the package section of the dock.
     
  2. Click the Scale button to import the weight into Postsale.

    The scale button is clicked and 7 ounces is imported from the scale into postsale. is

Weight Units

The imported weight is displayed according to the weight Unit selected in Postsale. To avoid confusion, we recommend that the weight unit set on the scale matches the weight unit selected in Postsale.

Here's an example of the scale being set to ounces and Postsale being set to pounds. Notice that the weight was converted from 7 ounces to 0.4 pounds.
 

 

 

Scale Frequently Asked Questions

I don't see a Scale icon in the Weight field in the Dock and I cannot read weights from my scale.

Here are some things to try:

  1. Make sure that the scale is connected to your computer.
  2. Make sure the scale is on. Some scales automatically power off after a few moments when not in use.
  3. Are you running Postsale in a web browser that supports reading from a Human Interface Device?
    1. In Postsale, go to Settings > Account Settings. Then, select Scale. If you see a message letting you know that USB scales are not supported, we recommend running Postsale in Chrome rather than your current browser.


       

I have two scales connected to my device. Postsale seems to have connected to the wrong one. Can I reconnect to the correct scale?

Yes. Here's how:

  1. Go to Settings > Account Settings. Then, select Scale.
  2. Click Disconnect.


     
  3. Now, click Connect. You'll be presented with a pop up allowing you to select and connect to the correct scale.

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