Jmak (Jmak Tecnologia) is a Brazil-based manufacturer specializing in high-performance hardware for vehicle tracking and telematics. Using proprietary technology, the company produces 4G/2G GNSS trackers such as the J-R11, J-R12, and J-C37, featuring accelerometers, CAN-bus reading, geofencing, and data backup, managed through its JotaWeb device-management platform.
