Environmental monitoring is a rapidly growing field, both in academia and industry. The use of wearables for environmental monitoring is a promising technique, as it allows data to be collected continuously and comprehensively. The main problem with using wearables for environmental monitoring is the size and weight of the system, as well as the high degree of specialization required to develop a fully functional device. WEMoS is an innovative wearable that solves these problems. It is a low-cost, open-source hardware, lightweight device that can measure four environmental factors: thermal, visual, air quality, and acoustics. WEMoS could have enormous potential, as it would allow monitoring of environmental conditions in workplaces, schools, or homes, and the collected data could be used to improve people's well-being and quality of life in general.
Based on our knowledge, confirmed by a systematic review of the scientific literature (https://www.mdpi.com/1424-8220/21/14/4727), there is no wearable device that can measure all the environmental variables that allow us to comprehensively characterize Indoor/Outdoor Environmental Quality (IEQ or OEQ). To address this gap, we developed WEMoS. WEMoS is a device designed by researchers for researchers, which meets the specific needs of research aimed at the comprehensive characterization of the built environment's environmental quality. To reduce the cost and encourage widespread use, WEMoS is made using low-cost sensors, each of which has been carefully selected and tested to ensure maximum reliability. For the same reason, WEMoS is built using rapid prototyping techniques that use 3D printing and open-source hardware.