More than 200 Tempo machines installed at Sainsburys supermarkets thoughout the UK, in locations such as Welwyn, Plymouth, Hertford and Wandsworth.
Sainsburys installed a parking meter because they wanted to provide free parking only for their customers. When paying for parking you get issued two tickets: one to go into your car to prove that you have paid and another with a QR to be read by the cashiers in the store, enabling the cost of parking to be refunded.