Te Pari Dosing Gun App The innovative Te Pari Dosing Gun App connects the Te Pari Revolution Dosing Gun with a smart phone and most Bluetooth livestock scale systems to provide an auto calibrated dosing system How it works At the start of the session, the Dosing Gun App needs to be set up with the required dosing rates – this is done on the phone. The Dosing Gun App then connects to the Scale and EID reader Systems via Bluetooth. The Dosing Gun App will receive the weight reading from the Scale