Remote monitoring only:
SaaS: Telegraf + InfluxDB + Chronograf = InfluxCloud:
https://www.influxdata.com/time-series-platform/te...
https://www.influxdata.com/products/editions/
OpenSource (own server): Telegraf + InfluxDB + Grafana
Or:
Logstash + Elasticsearch + Kibana
https://www.elastic.co/products