The quality of life is influenced by the environment quality and one of the major factors that require a continuous monitoring is the level of radiation. This paper presents a microcontroller-based system designated for monitoring the release of subatomic high frequency particles in the gamma ray area. Unlike the related scientific literature, where experiments are based on desktop computers for data processing and remote transmission, this work presents an independent standalone microcontroller-based system which incorporates the standard internet protocols. The measurement data, as well as warning signals, are sent to the decision making factors via a communication channel (such as internet, mobile phone or radio amateur band). Some experimental results are also discussed in the paper.