Inventory management system for managing consumer products on a vehicle

An inventory management system for managing consumer products on a vehicle or an aircraft, the inventory management system comprising:

• a portable product-identification device configured to:
• identify a consumer product presented to the product-identification device;
• and
• communicatively connect to a wireless network of the vehicle or the aircraft to update a central inventory of the vehicle or the aircraft based on the identified consumer product;
• and
• a detachable holder comprising:
• a clamping arm configured to releasably clamp the holder to a handle bar of a service device within the vehicle or the aircraft, such that the holder is attachable to and detachable from the service device during operation of the service device;
• and
• a mounting plate configured to releasably attach to the product-identification device to mount the product-identification device on the holder and, thereby, on the service device within the vehicle or the aircraft;
• wherein the mounting plate positions the product-identification device above a dispensing opening of the service device, such that an identification unit of the product-identification device is oriented toward the dispensing opening;
• and
• wherein the product-identification device is configured to automatically identify consumer products on service trays while the service trays pass through the dispensing opening during removal from and/or return to the service device, wherein positioning of the product-identification device above the dispensing opening enables the automatic identification of the consumer products during passage of the service trays through the dispensing opening.