PTR Hartmann

Coaxial Test Probes

Coaxial test probes – also known as Kelvin test probes – consist of two independent test probes which are insulated from each other. The inner conductor and outer probe operate and “give” independently of each other. Normally, the current flows via the outer probe, and the voltage drops are measured via the inner conductor. In addition to a standard type which can be plugged in, we also offer a threaded type  which can be screwed in using a conventional tool (socket head wrench).