Connect your SumUp Air and app
On the SumUp app, open the "Checkout" tab.
Enter £1.00 into the keypad and tap "Charge". Your card reader should now switch on.
Check the 3 digit number on the app matches the serial number on the back of your reader. Confirm by tapping "Connect".
The LED lights on your reader will flash to confirm the connection and your device and reader will sync. This will take about 2 minutes.
After a period of inactivity, your Air Reader will go into standby mode. However, it will remain connected to your mobile device.