Service NSW announced on Friday it would introduce COVID-19 check-in cards for anyone who needed it, particularly people without smartphones or who were not comfortable using the check-in webform.

The COVID-19 check-in card is a printed card with a unique QR code containing a person's contact details.

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Businesses scan the customer's card which electronically records their visit to the premises. The customer's check-in information is then available for NSW Health's contact tracing team if a positive COVID-19 case is found to have visited.

A Service NSW spokesperson said the card was a faster and safer way for customers without a smartphone to check-in to a business.

"It is not mandatory for businesses to accept the COVID-19 check-in card, however it's highly recommended to enable quick and easy electronic check-in," the spokesperson said.

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"Check-in data can only be used for contact tracing by NSW Health and is deleted after 28 days."

Once someone has created a card it can be posted to them or downloaded for printing immediately.

To register for a check-in card for yourself or someone else, call 13 77 88 or visit the Service NSW website.