H887KB (item number 1001758) is a receptacle for the compatible Switch Probe and defines its installed position in the test fixture. As a Receptacle, H887KB guides and positions the matching Contact Probe; depending on the design, the Receptacle can also provide electrical connection or insulation and supports controlled probe replacement during maintenance. When selecting H887KB, the matching probe family, installation dimensions and any required connection or insulation design should be considered together.