TYREDOG TD-1400A-X4 - Manual (Page 18)

V1.0-FB06 (1105232) 18
Anti-theft tool for sensor (Optional)
Anti–theft tool is designed to prevent the possibility of sensors being
taken away. Users can decide if it is needed or not.
A. Put anti-theft fixed ring onto valve stem.
(Before installed sensor , please make sure the valve stem is properly
clean, so there is no affect during tire pressure measurements.)
Take 1st for example
Valve
Hex socket Screw
Anti-theft fixed ring
Sensor