Check Box adds info to email body

Hello,

I would like to add information to an email depending on weather or not a check box has been ticked. I am able to do it with drop boxes but I am unsure of how to do it with tick boxes. I already have a variable called emailBody. the code I am trying to get work is bellow:

if (this.getField("Inductive"). valueAsString=="0")
emailBody += "\n700738197: Inductive Sensor";