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Palmer Wahl 121_Probe | RTD Ultra Fast Spring Straight Surface Probe | 4.5 in, 900 °F
The Palmer Wahl 121_Probe is an ultra fast, straight, spring-articulated platinum RTD surface probe. Automatic articulation helps the tip conform to the surface, which makes it useful in blind holes and thermowells as well as on moulds, dies, platens, electronics and machine housings. The standard shank is 4.5 in, with 12 and 18 in versions also offered.
Key features
- Straight spring-articulated tip
- 0.25 in stainless shank: 4.5, 12 or 18 in
- 2 s response on a 400 °F flat surface; rated to 900 °F
- Delrin handle
- 121_Probe connector versions suit TM612/TM630, TM612A/TM630A, 392HP/392AHP and 392A Series meters
- Specifications
| Part Number | 121_Probe |
| Brand | Palmer Wahl |
| Sensor | Platinum RTD |
| Style | Spring articulated straight surface |
| Shank Length | 4.5 in (12 and 18 in available) |
| Shank Diameter | 0.25 in |
| Shank Material | Stainless steel |
| Handle | Delrin |
| Upper Temperature Limit | 900 °F |
| Response Time | 2 s (flat surface at 400 °F) |
| Applications | Blind holes, thermowells, moulds, dies, platens |
| Connector Options | M8x1 4-pin (TM), Lemo 4-pin (TMA), 4-pin DIN (392AHP), 0.176 in bantam (392A) |
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