There are increased demands for safe, reliable and economically efficient operation of modern technical devices nowadays. These technical devices need an appropriate monitoring system in order to fulfil all the requirements. This consequently monitors their activity while providing appropriate information on operating parameters. As a result of them, the control system of a technical device can perform adequate interventions to remove unstable or rather critical condition. Melting furnaces are among devices where the current state of their operation is inevitable to monitor. The monitoring of melt temperature is an inevitable requirement in these devices because of its optimization for casting process, i.e. in order not to degrade its quality due to low or high temperature. Therefore, the aim of the paper is to describe a proposal for a solution of the operating parameters of the gas melting furnace KOV 010/1998, which is in practice used for melting of non-ferrous metals with low melting point. By implementing the proposed solution, its operation should be simplified and more importantly, its operation should be more efficient.