Thin Film Sensor Soldering

I tried to solder the thin film sensor to some wires but it interferes the signal. Is there a specific method to solder the sensors? Do I need to purchase any more parts to do so?

for soldering these thin film sensors, have a look at this hyperlink:
Thin_Film_Pressure_Sensor_SKU_SEN0293_SEN0294_SEN0295_SEN0296_SEN0297_SEN0298_SEN0299-DFRobot