Features provided by Bluetooth 5 and Bluetooth mesh paved the way for a number of new IoT applications such as large industrial sensor networks, asset tracking, connected buildings and industrial real-time control. A technology study was initiated by u-blox, where hundreds of nodes were installed to evaluate performance expectations, provisioning challenges, network management/monitoring, and sensor firmware update over mesh network. Findings and guidance in how to integrate Bluetooth mesh in a sensor network will be shared.