Intangible cultural heritages (ICHs) have been affected by globalization and modernization, requiring innovative preservation and transmission methods. In this study, we investigated how to integrate sensor technologies into ICH branding and promotion in three representative sites: a museum, an indigenous art center, and a traditional village. Motion detectors, augmented reality applications, and Bluetooth audio guides were deployed to enhance visitor engagement and cultural appreciation. Data were collected from 150 participants through surveys and interviews by experts, with reliability confirmed by Cronbach’s alpha (0.763). The results demonstrated moderate-to-high visitor satisfaction, with mean scores of 3.52 for engagement and experience, 3.48 for personalization and accessibility, 3.50 for branding and perception of the ICH, and 3.49 for preservation and cultural sensitivity. A one-sample t-test confirmed significantly positive perceptions of sensor-integrated branding [t(149) = 8.76, p < 0.001]. One-way analysis of variance (ANOVA) results revealed significant differences in the branding and perception of the ICH (F = 3.82, p = 0.024) and preservation and cultural sensitivity (F = 1.84, p = 0.029) across different educational backgrounds. These findings show the potential of sensor technologies to create immersive, personalized, and data-driven cultural experiences while also identifying barriers, such as cost, technical reliability, and cultural authenticity. The results of this study contribute to sensor technology development by proposing an engagement index that synthesizes motion, orientation, and proximity data, offering a novel framework for quantifying visitor interaction and refining cultural branding strategies.