They may even lie about stuff or wires not working to leave you thinking you have no choice but to have them re-do it for a price. They tried to get us to replace 8 contacts at $25 each, that they said didn't work. They ended up only leaving 3 contacts unhooked that were supposedly bad. (remember it was supposed to be 8 bad contacts) After they left, I hooked up the 3 and turned on the alarm, what a surprise,, they worked just fine.
Pros: inexpensive monitoring
Cons: installation prices
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