PH Probe Specification

Hi, Im interested in this product: Wireless pH Temperature Sensor | IoT pH Sensor with ORP Capability (ncd.io).

I checked around but couldn’t find any specs for the PH probe, Could you tell me what type of electrode it is/what material it is made out of, and what is the connection ie. (BNC, DIN, US)?

the ph probe is made of PPS plastic and the connection are bare wire which connect to the on board screw terminals.

Thanks