Bayonet RTD Sensors- Bayonet RTD's, thermistor and thermocouple temperature sensors are commonly used in extruder and plastic processing industries. These sensors provide accurate temperature control for the best plasticizing combination of plastic material, mold and design. Bayonet mounting provides easy and inexpensive spring-loaded installation of probes into solids. All models have a copper alloy tip for fast response and increased tip sensitivity. These sensors are proven accurate at 260 C (500 F).