The development of cost-effective and efficient methane concentration detection systems offers a promising alternative to traditional gas chromatography equipment. These advanced systems, although capable of analyzing numerous materials, are often inaccessible due to their high costs and maintenance requirements. This study focuses on designing a methane measurement prototype utilizing low-cost, commercially available sensors, specifically the MQ-4 sensor, to provide reliable readings under different conditions of pressure, temperature, and humidity. The prototype cost $20 USD and was built with easily interchangeable and reprogrammable components, making it a practical and cost-effective solution for methane detection. Our findings indicate a strong correlation between the raw values obtained from the module and those from gas chromatography under standard conditions, confirming the reliability and replicability of the results. The prototype’s low cost and portability make it suitable for a wide range of applications, including renewable energy and biogas production from wastewater and other waste sources. By providing an accessible methane monitoring solution, this prototype can extend advanced biogas research and monitoring capabilities beyond specialized laboratories, promoting sustainable energy practices in diverse environments.