Several CrimeGuard aftermarket alarm systems marketed by Omega used a 4-button remote transmitter with FCC ID ELV144 on the back. Some of the systems using this remote are CG-328i4, CG-533i4 and CG-750i4, but there are others.
This keyfob was out of stock for some time, but is now available again at Remotes Unlimited. The part number is 169-1169. See the remote at this link.
Like most aftermarket alarm systems, CrimeGuard systems using this remote are user programmable to accept the new keyfob.