sensor adaptor info request

Dear All,

I am using the Teros-21 Soil water potential meter within my arduino system, and having problem connecting the sensor to the arduino UNO unit. Does anybody know of an adaptor that can be used for the Teros-21 plug (like the picture attached ) to be incorporated into the arduino or pi system?

Thank you for all your assistance in advance.

Best,
Sohiya

Page 3 of the documentation
http://publications.metergroup.com/Manuals/20428_TEROS21_Manual_Web.pdf
gives you some info.
Have a look at the 'TEROS 21 Integrator Guide'.