Which sensor can i use for AC evaporator temperature sensor

Good day. I recently wired my AC through my Emu Black for activation input and clutch output. This works great, however for the system to cycle the emu needs to know the ac evaporator temperature.

Which sensor can I purchase to use as a evaporator temp sensor? I noticed that the Ecumaster oil temp sensor is in the pre-defined settings however when I was about to purchase the sensor, it stated that its a fluid temp sensor.

I don’t want to purchase the wrong sensor so help me out.

Thanks.