Help setting up ZWAVE Door/Window sensors

I am trying to help my niece setup her Smartthings and the door/window and motion sensors. I bought these ZWave devices from Home Depot (

Can somebody tell me what to use when pairing these? I have seem some people say to use the Aeon option and a few others. I did get one of the D/W sensors to be recognized but the device said it was OPEN and putting the magnet by it, I could not get it to turn to close at all.

Any help is appreciated. Thanks