Sound Devices product serial numbers are 12 digit sequences located on white bar code stickers. The bar code sticker is located on the back of 7-Series recorders. When a battery is in place, the serial number sticker is not visible. The bar code sticker is located on the bottom panel for all other Sound Devices products.
744T Back PanelAn additional serial number label is located on the outside of the original shipping box. Serial numbers can contain numbers and letters.