How to read a flood sensor. What type is recommanded

[maryantudor@gmail.com]

Hello,

Please let me know how I can received the flood sensor value. It's possible to integrate a food sensor that is operate at 12V with CAN-UI8 by using Analog inputs and set a VHigh to 12V? It's other better solution (dry contact) or flood sensor that I can use? 

Thank you!