Hamish

Hi All I'm new here so please bear with me! I have a great alarm system which needs a small extension. I need to add another 'Optima 2 Plus' keypad so I can deactivate the alarm at a new point. I know the system is old but does anyone know where I might pick up such a keypad please?? Apparently the control panel can take the extra keypad ok. I've attached a photo of the existing keypad in case there is any doubt. Thanks for reading this. Hamish