We can see the Thresholds for CPU, Memory, packet loss & response defined in Node properties and Orion General thresholds. In Alert, you can define the condition to trigger the alert when the devices reach the threshold level ( Here no need to define the threshold values in Alert condition)
Node Thresholds

Orion General Thresholds

Select the trigger alert for Node(I want to Alert on).
Scope can be for all Nodes or we can apply to specific Node/Nodes.
Choose the Condition – Warning Value Reached (CPU Load Threshold, Percent Memory Threshold , and Etc.)


Here in this example when the CPU load of Any node reach the Warning Value ( 80%) This Alert will be triggered.
Remaining settings you can define based on our preference.




