H822 (item number 1017355) is a receptacle for the compatible Kelvin Probe and defines its installed position in the test fixture. As a Receptacle, H822 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. H822 also has the following specified feature: Overall length is 15 mm. When selecting H822, the matching probe family, installation dimensions and any required connection or insulation design should be considered together.