help dont know how to do with this diagram

Projects General Guidance
1

i really don't know how to connect this with arduino can someone help me :relaxed:

a1.jpg

2

jallibee:
i really don't know how to connect this with arduino can someone help me :relaxed:

A link to the device and its specifications isn't working.

3

measure the voltage between blue and green. if it varies between 0 and 5 v corresponding to liquid level you can connect it to GND and a analog in on the arduino