RTD Ultra Fast Spring Articulated Straight Surface Probe


Spring articulated straight surface probe is useful when measuring temperatures of blind holes, thermowells, and general surface measurement. Automatic articulation especially useful to achiene conformity between tip and surface. 900°F temperature limit. 4.5 inch shank.

Also available in 12 inch and 18 inch lengths.

Utilizes platinum RTD for long term stability and repeatability and use as a primary standard.

Available with connectors to work with our TM, TMA, 392, and 392HP series meters.



Spring Articulated Straight Surface

Shank Length

4.5 inches. Also available with 12 inch or 18 inch shank.

Shank Diameter

0.25 inch

Shank Material

Stainless Steel


Platinum RTD

Available Models

TM: M8x1, 4-pin connector (for use with TM612 or TM630)
TMA: Lemo 4-pin connector (for use with TM612A or TM630A)
392AHP: 4-Pin Din connector - Female (for use with 392HP & 392AHP Series)
392A Series: 3-conductor, 0.176 inch “bantam” phone plug, copper alloy (for use with 392A Series)



Handle Material


For Use With

Molds, dies, platens, electronics, machine housings, and other surfaces

Upper Temperature Limit


Response Time

2 second response measured on a flat surface at 400°F