Home Alarm System: Windows/Door Contact
 

How and where can I buy them?
Are they brand/model specific?

Just had my windows replaced, need to re-install contacts. Thanks!

Most electronic wholesalers should carry them. They're not brand specific but you just want to get N/C contacts. You just need to solder the two leads to the wires sticking out of your window frame. The 'BCIT' standard is the yellow and green but if you are unsure, use a multimeter to check the continuity of the loop.

What's N/C Contacts? Would Lee's Electronics carry it? Thanks for the response.

The headaches caused by the inevitable false alarms you'll experience probably don't outweigh the cost of hiring a trained professional to properly do the job for you.

Do you work in the alarm security industry? if so, what's the cost I am looking at?

Costco has home security products
A wide range of variety in fact..

N/C = Normally Closed. Your alarm system is basically monitoring a set of closed loops. There are different styles but these recessed ones are probably the most common:

https://d1unzhqf5a606m.cloudfront.ne...ed-contact.jpg

You'll need to drill into your window frame to pull the alarm cable through. Solder the contact's leads to the wires and then silicone it in place. Position the magnet on the sliding part of the window; test fit it with tape before securing in place with silicone.

Thanks for your response.

The image you posted is for doors right? I am looking for windows.

Doors and windows are the same.

He's probably thinking of the rectangular exterior mounted switches as it seems that the OP has wires sticking out of the wall.

The ones posted above aren't visible as they mount inside the window frame for a much cleaner look.