Wintec displayed a series of industrial IoT products: NB-IoT GPS Tracker, BLE Data Logger, NB-IoT RS485 & 5 Ports AUX In / Out Gateway, NB-IoT PM2.5 / GAS Sensor at 2019 SMART CITY SUMMIT & EXPO. Product specifications are standardized dimension, as well provides customized service. Welcome to contact us for more comprehensive integrating solutions.