Abstract: An algesimeter which includes a pin wheel that is disposable and easily attachable/detachable to a handle structure. The algesimeter includes a handle, a pair of pivotable arm members extending from the handle, and a pin wheel releasably held between the pair of pivotable arm members. A release mechanism is provided within the handle for pivoting the arm members between an open and closed position, wherein the pin wheel is rotatably held by the pair of arm members in the closed position and released from the pair of arm members in the open position. A pin wheel can be attached and/or released from the handle without being directly contacted by the user.