This paper presents the design and implementation of a wearable system for monitoring physiologic variables. The system is composed by a master module, responsible for receiving the data and the Wi-Fi transmission. Also, a set of node sensors (or slaves) were developed, allowing the acquisition of multiple biological signals in a modular and versatile arrangement. The nodes are connected by Low Energy Bluetooth to the Master. In this paper we present the nodes for pulse oximetry, temperature, electrodermal activity and voice acquisition. The results are encouraging and the entire system has an adequate performance and versatility.