Any ideas on how to use PH-4502C pH Sensor with ESP32 I have connected live/ground and sensor wires but the ESP32 is just reporting 4095?

I can not find the DataSheet / Manual for the PH4502C.

This is my first little project. I have purchased a PH Sensor and an ESP32 Development Board .

I've connected the ESP32 to the PH Sensor:
3v3 to V+
Gnd to G
Pin 35 to Po

Unfortunately, the PH Sensor just returns a 4095, no matter what the PH level of the water is.

This is new to me but I ...