We call this option to our DataGlove "3D". So, by adding "3D" to your desired DataGlove configuration you will receive an embedded 2 axis Memsic accelerometer. It supplies two data channels of hand tilt +/- 90 degress information.
Here you see the location of the 2axis accelerometer for tilt and vibration measurements. It sits in the middle of the back of your hand.
The two axis which can be measured are up/down and left/right tilt.
Currently you cannot measure rotation of the hand in z-direction.