The Windy City is getting the next Amazon Go checkout-free store, the first to open outside of Seattle. The new cashierless store opens Monday in Chicago.

The original Amazon Go store is located in the first floor of Amazon headquarters. It opened to staff in 2016 and to the public in 2018. Two more have since been launched in Seattle.

The store uses proprietary technology made up of of hundreds of cameras and sensors to see what customers have taken. The Just Walk Out tech allows customers to swipe in with their Amazon Go app, pick up what they want and walk out. When they leave, the items are automatically charged to the credit card on the account, without the need to talk to a cashier or swipe a bar code.

The stores stock a high-end assortment of grab-and-go lunch foods, as well as chilled beverages, sweets, snacks, ready-made salads and sandwiches, frozen foods, meal kits for dinners, as well as some groceries and sundries.

The three Seattle stores are popular with Amazon employees and others looking to grab and go quickly.