Using a Salto card reader
The Salto card reader is similar to other readers but users must remember to place the card over the symbol:
Sometimes if the reader is an UPDATE reader which means it’s always online and will update your card with new information, the reader will take longer to read and will flash BLUE while it processes the information from your card then GREEN when it’s finish.
It’s important to ensure your card remains on the reader until it shows GREEN otherwise the card won’t unlock the door or lift.