Penetration style RTD's are designed to be used to measure internal temperature of dough, fish, meat, poultry and other food products. They can also be used to measure temperatures of other soft materials such as plastic or rubber. All meterials used in the construction of Acrolab's penetration style RTD's are FDA compliant for use in sanitary applications. The sheaths are manufactured from 304SS hypodermic tubing with a sharp tip. All assemblies come standard as a 3-wire construction and 0.12% accuracy at 0° C.