Member Splash allows you to look up members by last name, account number, street address, or via barcode scanning. Fields available for member lookup at your club depend on the options you selected under Member Splash Settings -> Front Desk Options.
(NOTE: Member data is loaded from the server when you first load the check-in screen and once every hour thereafter. Once downloaded it is stored locally. While this greatly speeds up the check-in system it means that the data at the front desk might not reflect very recent changes. For example, if a member purchases guest credits online and then shows up at the pool 15 minutes later those credits might not be reflected on their account. You can reload the member data at any time by simply refreshing the page in your browser.)
BARCODE SCANNING & CUSTOM BARCODES
If you intend to use barcodes make sure that you have checked that option under Member Splash Settings -> Front Desk Options. You'll see Barcode listed as one of the fields you can use to look up members.