Question

Hello, I just recently bought the Gravity: Analog pH Sensor/Meter Kit V2 and Gravity: Analog Electrical Conductivity Sensor / Meter(K=10) and I was wondering if I can use it both simultaneously on Raspberry Pi with the help of Gravity: I2C ADS1115 16-Bit ADC Module as the Raspberry Pi don't have any Analog I/O would I also need the Gravity: Analog Signal Isolator or the ADS should be fine without it