May 2026
A new look and web platform is launching
The goal of the Onlinemonitoring project is to provide products, services, and industrial monitoring solutions with a transparent, modern interface.
Contact
Find us regarding measurement projects, device selection, CMS systems, or partnership collaboration.

About Us
In our lives, there is a growing demand for the use of renewable energy sources and the intelligent control of consumers. In order to stop or reduce rising energy costs, we have decided to develop a completely new, complex metering and monitoring system.
Onlinemonitoring is an innovative and complex system that helps its users optimize their energy consumption and energy production. During the development of the system, we placed great emphasis on user experience, ease of use, and reliability.
Our goal was to create an accessible, useful solution for everyone that helps reduce energy consumption and costs while increasing user comfort and safety.
Onlinemonitoring devices under the OLM brand are manufactured by Gelka Kft. in Hungary. All firmware and central metering software solutions are our own products. The devices are of our own design, and we use products from well-known, reliable component manufacturers in their circuits.
During the design of our products, long-term, stable operation is one of the main considerations. Every OLM device is individually tested during quality control, because we want our users to use our products for many years and enjoy their benefits.
News and developments
May 2026
The goal of the Onlinemonitoring project is to provide products, services, and industrial monitoring solutions with a transparent, modern interface.
Development
The data coming from the devices can be monitored on a structured interface, with alarms and time-series analysis options.
Service
Device selection, installation, communication, and online data access can be structured as a jointly managed service process.