Hi there,
Currently I have Hills networx nx4 installed by the builder and looking to upgrade to either Hills reliance NX8 OR 12. As I am working on a tight budget, I am looking to keep some of the alarm hardware exp external siren and upgrading only to what I need exp alarm panel. Being a novice, my knowledge is limited. Appreciate if there is any home alarm security experts out there who can point me to the right direction. cheers