Where can one find more information about fire extinguisher cabinets?

Hallmann, Select Safety Sales, Larsen's Manufacturing, as well as local hardware stores and restaurant suppliers all carry a variety of fire extinguishers and extinguishers cabinets. It is best when purchasing an extinguisher to not only read the directions before needing it but to also have training and instruction as well since in the middle of a fire it would be difficult to concentrate.