The Point Sensing RTD Probe–Compression Fitting is constructed with a rigid stainless steel sheath with an element embedded into an aluminum tip. The aluminum tip provides faster time response. These sensors are typically designed for use in plenums and ducts within HVAC systems. They can also be utilized whenever a quick time response in a non-corrosive low pressured environment is needed.
Point Sensing RTD Probe – Compression Fitting datasheet (pdf)

312 series
(Configurable Product)

104M series

121 Series

500 series