Order Selector Trucks (also known as Order Picking Trucks) are special designed, battery powered narrow aisle trucks. There are two types of order selector trucks - a low level order selector for the selection of goods from the lowest level and the second level of goods stored in pallet racks (usually found in the food industry) - and a high level order selector where the operator controls the truck from an enclosed cabin and selects goods from any level of the racks.  

Order Selector Trucks are fitted with small diameter wheels (usually polyurethane) and are suited only for indoor use on flat, clean floors.