C Connectors are typically used with Ludlum meters and probes. This is a type C to C cable with 3′ length. If you are buying a Ludlum meter with an external probe, you will need something like this to connect them (check your connections). We do have refurbished versions for a bit less in another listing while they last.
We also have 5′ cables in another listing.
We make custom lengths with various connectors (such as BNC or MHV) on one or both ends. Contact us for price and availability of custom cables.