The research highlights the importance of temperature and humidity in product quality control, emphasizing the need for accurate environmental monitoring systems. The existing calibration method for wall-mounted sensors was found to have limitations, including high uncertainty. In response, a new advanced device has been developed to address these shortcomings. This device offers enhanced precision and versatility in calibrating various irregularly shaped wall-mounted sensors, revolutionizing environmental monitoring technology. The updated device represents a significant advancement in ensuring efficient and reliable evaluation of temperature and humidity levels in industrial settings, promising improved product quality control across diverse industries.