5712.2 QR-coded parameter menu! Menu control (Starting/Ending the Setting Procedure and Reverting to Defaults)"Start setting" "Start setting"(When the "White code onblack background" is set)""Cancel""Defaults" "End setting"The beeper volume can be set by scanning the following QR Code symbol only. No "Start setting" or "End setting"QR Code symbol is required to scan.Adjusting the beeper volumeScanning this QR code cycles the beeper volume through High, Medium and Low. The factory default is High."Beeper volume"