What does VAR mean on my Direction submenu? How do I enter Magnetic Declination into the Kestrel?
Var is going to be the magnetic declination of your current location, further information can be found here: Magnetic Declination
Var is not used when selecting Magnetic North. If you choose True North, then it is advisable to add the Var number.
To find your magnetic declination, here is a good place to start Find my Var