so where in the house do you need
Room 1,2 and 3
Bathroom 1 and 2
lounge
Kitchen
Outhouse *3
Garage
lounge
entrance hall
so you count each one as a zone ?
Each can have multiple zones.
Depending on what you want, but to give you an idea.
1. You want to know there is an intruder before he enters your house, so PIRs are really last line of defence.
Start with, beam sensors outside the house. If you do not have an electric fence, otherwise that would be 1st line.
I have a square yard, so 2x beams is enough. 1 on each opposite corner and they cover a square around the house. So thats 2 sensors used
2. Next line is to get something that detects when they enter, but before they move inside the house.
So door and window magnets. With these you can have multiple linked to the same sensor input, but generally not. So you want 1 for each exterior window and door. But if lounge have lets say 2 doors, they can be linked to a single sensor.
Ps. I also did Garage doors and windows. Some thieves specialise in only entering garages to steal stuff...like tools to break into the next house.
3. Last line, PIR sensors inside each room of the house.
My system can take 64 sensors, I am using about 24. So a 32 zone system should be fine. But also, this system set me back closer to R30k with install taking 3-4 days from what I remember.
So maybe spend a bit more time in thinking on where you want sensors, what you want.
The system they quoted you on, is just an excuse to make money and get something installed that really won't do you any good. Why have all these sensors inside, not even everywhere, but nothing outside?
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