simple z-wave keypad to activate alarm

Hello,
Do not want to install a sophisticated alarm solution, but just want to know if there is another solution than Poly-Pad from Poly-Control to be able to set a code for activating and deactivating an homeveramade (SSA1) alarm?

Or the best way to interface with Vera such an autonom keypad which has the following outputs available:
output 1: 5A, N.C. & N.O. dry contacts, 30Vdc max
output 2: 1A, N.C. & N.O. dry contacts, 30Vdc max
output 3: NPN transistor open collector output for aux. control purposes