Equipments allows you to group expiration items. It provides a way to group and search document expiration dates, list them and have notes and files specific to these equipment.
Although the name is equipment, it can be used to track multiple items. For example:
Equipment: for tracking calibration.
Vehicles: for tracking registrations.
Trucks: for tracking maintenance and registrations.
Boats: for tracking maintenance and permits.
Laptops: for tracking warranties.
Mobile phones: for tracking warranties and renewals.