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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
There is an option to get "professional monitoring" through the noonlight-hass custom component for HA. From what I can tell, it just creates a switch in HA that you can automate so when your alarm is triggered, enable the switch which will notify the monitoring center Noonlight uses.
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