Operators & thresholds
A rule compares a device tag against a threshold using one operator:
| Operator | Fires when value is… |
|---|---|
gt |
greater than the threshold |
lt |
less than the threshold |
gte |
greater than or equal |
lte |
less than or equal |
eq |
equal to the threshold |
Scope: a rule targets a specific device, or all devices (leave the device unset) to apply the same condition fleet-wide on a shared tag name. Set thresholds in the tag's engineering units — apply scaling on the tag so raw values and thresholds line up.