[Observium] Alerts for Device ping delay

Hi,

Having recently purchased Observium Professional Edition, I have a question on Alerting for high delay to the device. I've configured an Alert Checker with parameters: - Tests: device_ping gt 40 (assuming RTT to the device not to exceed 40ms); - Device match: os equals ios - Entity match: <hostname> - Entity type: Device

Actually, this checker applies not to the Device itself, but to the Ports of the Device, resulting in incorrect checks. I assume, that device_reboot checker will act in a similar way and won't trigger an alert. Can anyone provide a working config on this Alert type?

---- Best, Sergey Homyakov