Sports Afield Print Guard E-Lock Safe Replacement Keypad NEW. Bought directly from Sports Afield, Safe ended up having the keypad inside after we got it open. It's never been used. E-lock models within the Haven Series feature an additional layer of protection known as Print Guard. Print Guard is a technology that requires a two-digit random code to be entered before the e-lock face is activated. This ensures your code cannot be deciphered by someone trying to access the safe by examining prints on the touch pad.