SICK TSP-1QAG10606MZS

A metal probe is often made from a precious metal — typically, a palladium-based alloy — beryllium copper, or various nickel-based alloys, as well as tungsten or rhenium tungsten.

the time taken for a circuit or measuring device, when subjected to a change in input signal, to change its state by a specified fraction of its total response to that change.