second to last axis can also be considered a pitch axis similarly rotation about a third to last axis l 3 can be considered a yaw axis the handle 40 can also generally comprise a pistol grip style which can further include ergonomic grooves corresponding to human fingers not shown the handle can also have a generally central axis l 5 optionally within the handle 40 a battery 42 can be held in some embodiments the handle 40 can include a sealed battery as described in u s publication no 2007 0256311a1 published nov 8 2007 which is incorporated by reference herein in its entirety further the battery 42 can insert through the bottom of the handle 40 in other embodiments the battery 42 can insert through the top of the handle 40 and the handle 40 can release from the coordinate acquisition member 50 to expose an opening for battery insertion and removal the battery can be provided to power the laser scanner rotational motors about one of the articulation members 30 36 and or other types of probes or devices this can reduce current draw through the arm decrease overall power requirements and or reduce heat generated in various parts of the arm in one embodiment data can be transmitted wirelessly to and from either the coordinate acquisition member 50 or the non contact coordinate detection device 60 and the base of the pcmm 1 or to an external device such as a computer this.