From the screenshot, you can see that it records several POWER_OFF / POWER_ON events and shows:

When the power outage happened
When the power came back
How long each outage lasted
Whether the timestamp was synchronized by NTP
The number of stored records and the maximum capacity

IAMMETER will release this small tool soon, and it will be available on the IAMMETER Contributor Center shop:

https://contributor.iammeter.com/shop

Stay tuned, and feel free to share your thoughts if you think this kind of powercut / outage logger would be useful for your site monitoring.

Nice teaser 👀 — looks like an offline powercut/outage logger that captures POWER_OFF and POWER_ON events locally. Super useful for remote sites (think solar pumps, garden sheds, telecom cabinets) where you need to know exactly when the grid dropped, how long it was out, and whether the timestamp was NTP-synced. A few quick questions while we wait for the release: • **Buffered logging** — will it store events in non-volatile memory on the device itself, so nothing is lost when both the meter and the router go down? That would be the real differentiator vs. relying on cloud logging alone. • **Export / API** — any plan to expose the event log via the local HTTP/Modbus API (or a CSV export) so it can be pulled into Home Assistant, Node-RED, or Grafana? • **Alerting** — a configurable threshold (e.g. alert if outage > X minutes) plus a webhook/callback would turn this into a real early-warning device, not just a logger. The NTP-sync flag in the screenshot is a great touch — exactly what people need to spot clock-drift issues on cheap routers during long outages. Looking forward to seeing it on the Contributor Center shop. Will it ship as a standalone dongle, or piggyback on the existing WEM3080/T3080 firmware?

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