User Signals
The User Signals sensor detects whatever you tell it to. It gives you a way to control directly some other Compound Sensors. For example you can use it with the Line Of Sight sensor to test visibility of specific objects.
The User Signals is configured explicitely to detect the Sword, Vase and Crate
Output Signals
You specify exactly what the output signals are by setting them in the Input Signals list. There is no need for this sensor to Pulse.