Arccos Link Pro is not compatible with any of our 1st generation products, including Bluetooth putter sensors. As a gesture of goodwill, any 2nd or 3rd generation Arccos user who has a Bluetooth putter sensor will be eligible to receive a free 3rd generation putter sensor ensuring your sensors are fully compatible with Arccos Link Pro. To take advantage of this offer simply order Arccos Link Pro and email your order confirmation to Starter@arccosgolf.com requesting your free putter upgrade. Once your Arccos Link Pro ships we will also send you a new 3rd generation putter sensor.