When various automatic steering is performed, a steering reaction transmitted from steered wheels is suppressed without making it interfere with a driver’s steering input. The invention also provides a probe and a method of making the probe that is removably insertable into a gas phase ion spectrometer, the probe comprising a substrate having a surface and a plurality of particles that are uniform in diameter on the surface, the particles comprising binding functionalities for binding with an analyte detectable by the gas phase ion spectrometer. The hand grip may also include a handle member connecting with the backing. An instrument depth map corresponding to an instrument is obtained for each image, wherein the instrument is inserted in a patient’s body cavity. The mast is telescopable so that the height of the lightening conductor can be individually adapted to local conditions and is transported conveniently. Secured to the top of the second stand base ring is an upwardly-extending base.