Which Bluetooth class is the G30 Controller? Kim September 20, 2021 01:23 Updated The Bluetooth chip used in the G30 controller is Class 2 which means it has a 10 metre (32.8 ft) range. Related articles Why does the G30 Controller connect via Bluetooth rather than WiFi? Instructions - G30 Quick Start Guide - G30 What do I clean the Grainfather brewing and fermenting vessels? Can you add more than one device to the G70 wifi controller?