There is no scale integration today. There are two workarounds.
1. Manual Entry - Custom Unit Price
When building a Catalog on Poynt, you're able to build an item or product with a custom unit price. After weighing a product you could then open the Register Application and click on the item and enter the price. This is obviously not ideal and there is room for failure, but it's a great easy way to add a custom price without upgrading to an expensive POS.
2. Upsell talech POS - Standard Integration with Scale
The talech POS Application is a more sophisticated Register available on Poynt. If you upsold talech POS, the merchant would need to use an iPad and Elo Station for the scale integration to work. They could still use the Poynt or Poynt 5 as a pay-at-the-table or order-at-the-table solution, but the scale does not integrate to Poynt hardware directly.
More information on talech scale integration: