
Half a degree is enough
Drift is inherent to thermocouples. It is gradual, and small enough that no engineer can track it by hand across every sensor and every run, so it stays invisible until a run comes out wrong or a furnace stops unexpectedly.
Half a degree of error is enough to change how the crystal cools. The controller corrects toward the wrong number, the screen still reads the setpoint, and the real gradient moves away from the one your recipe calls for.

The signal is in the relationships
Each sensor on its own looks healthy. What moves first is how the sensors sit relative to one another: which reads warmer, by how much, at which stage of the run. Machine learning and deep learning models weave together millions of readings from your run history and the thousands coming off the furnace now, and surface the subtle shifts in those relationships. Drift becomes a number you can act on and a replacement you can schedule between runs.
- Works on the process data your furnaces already produce
- No new sensors and no data overhaul to get started
- Relationships tracked across the whole hot zone, run after run
- A replacement you can schedule before a run is at risk