Open box, 1 available. Inspected and verified that it works. Older version for 3S

REPLACEMENT SENSOR MATRIX FOR USE WITH GRAN BOARD 3S ONLY!

THIS MATRIX WILL NOT FIT THE GRAN BOARD 1, 2 OR 3.

Any warranty or tech support issue are handled directly through the HELP link on the Gran app, by contacting Gran through Facebook or by email. There email address support@gran-darts.com.