OhmGraphite is a free Windows service that exports hardware sensor readings to metric stores for Grafana or another time-series interface. Supported destinations are Graphite, InfluxDB, Prometheus, Postgres, and TimescaleDB. Example measurements include CPU and GPU power, voltage, frequency, load, and temperature, plus disk activity and space, fan speed, and network consumption. LibreHardwareMonitor supplies the sensor data, so available readings depend on the computer’s hardware. PawnIO enables access to readings such as CPU temperature, wattage, and frequency; without it, OhmGraphite still runs but emits less data. Setup involves downloading a ZIP, configuring the application, and installing it as a Windows service, with interactive operation also available. Prometheus mode polls sensors when scraped and supports optional HTTPS configuration. Environment variables can hold database credentials. Users can rename or hide sensors and disable categories such as CPU, GPU, network, or storage. Postgres and TimescaleDB schemas and columns are not configurable.
Who it is for
OhmGraphite suits Windows users who want hardware metrics in Grafana or another time-series UI. It is aimed at remote monitoring through supported metric stores rather than a standalone sensor dashboard.
What is good
- Free Windows service
- Supports five metric-store destinations
- Exports broad hardware measurements
- Prometheus scrape mode available
- Sensor names and categories are configurable
What to know first
- Sensor availability depends on hardware
- PawnIO is needed for some readings
- Postgres schemas and columns cannot be configured
- Requires metric-store and dashboard setup
Verdict
OhmGraphite provides a direct route from Windows hardware sensors to several monitoring back ends. Its usefulness depends on available sensors and willingness to configure a metric store and visualization system.
OhmGraphite plans and pricing
All plansCompared on hardware monitoring software
- Free plan
- Yes
- Supported platforms
- Windows
- Remote monitoring
- Yes
