Details on pH Probe

Hello,

I am hoping to get more information about the pH probes for the pH sensors. What is the power consumption and what do the 4 wires coming from the pH sensor do? I see T+ and T- which I assume is for the temperature reading. I’m guessing G is ground but what is R?

Thanks,
Matthew

The power consumption is 10mA.
T+ and T- are for internal thermistor.

Do you have a manual or datasheet for these specific probes?