# IMT Technology

> Supported devices: Si-RS485TC

Source: https://voltmasters.io/en/docs/device-integrations/solar-irradiance-meters/imt-technology/

Our EMS supports solar irradiance meters from IMT Technology.

IMT Technology produces silicon irradiance sensors for photovoltaic monitoring. The meter communicates with our EMS over Modbus TCP.

### Supported devices

-   **Si-RS485TC**: silicon irradiance sensor with integrated cell and external temperature measurement

### EMS functionality

With the current integration, our EMS enables:

-   Real-time measurement of solar irradiance (W/m²)
-   Estimation of the achievable PV power from the current sunlight
-   Detection of curtailed or underperforming PV production

Solar irradiance meters are monitoring-only devices; the EMS reads them but does not control them. See [Solar irradiance meters](https://voltmasters.io/en/docs/device-integrations/solar-irradiance-meters/) for how the measurement is used.