Wireless Button Pusher Answered

Hello all,

I am trying to add/build a wireless button pusher to a grain management device on my farm. The device cannot be hacked into or tampered with, however, the button I am trying to push requires little force and does not need to be sustained. It only needs to hit the button when I hit a remote. Additionally, I cannot use a phone for this (my grandfather needs to be able to operate it as well and could not use a phone) So I would need to be able to connect two simple remotes. 

Any and all suggestions welcome.