Momence POS is compatible with Stripe's BBPOS WisePOS E device.
To order a card reader, follow these steps:
Navigate to the Stripe Terminal Shop at https://dashboard.stripe.com/terminal/shop
Select the BBPOS WisePOS E device
Click “Add to cart”
Proceed to your cart: click the “Cart” icon in the top right of your Stripe dashboard
Fill in your shipping address and complete the order
Once the device arrives, see this article for setup instructions: