This guide assumes you are using or newer (Proteus 9/10). The process is similar across versions.
If you want to simulate the internal circuitry rather than just the signal, you can build the analog equivalent. yf-s201 proteus library
. Their custom-designed library allows you to integrate the sensor's Hall Effect pulse logic into your Proteus workspace. The Engineering Projects Key Features of the YF-S201 Proteus Library Simulation Logic This guide assumes you are using or newer (Proteus 9/10)