Reliable probe setups start with the right mechanical protection at the sensing point. P4 is specified for Ø26 mm probes with M24x1.5 thread, giving service teams a clear matching part for compatible installations.
The accessory uses 20µm sintered PE protection for the probe front. Its -40...80 °C operating temperature supports use in cold and warm measurement environments where this material and thread connection are suitable.
For maintenance, replacement or accessory selection, P4 is easy to identify by three key facts: Ø26 mm probe suitability, M24x1.5 thread and 20µm sintered PE construction.