Make sure you know how long ADT's prices are locked in. How much does a business security system cost per month? A security professional to monitor your business will cost you anywhere from $40 to ...

There is a $99 activation fee for all devices. *Note that the $0 equipment cost excludes add-ons. ADT’s upfront medical alert system costs are cheaper than some other companies because there are ...

It costs $1,387 if you pay upfront ... it's very hard to hack the actual ADT system.” Dennis in Michigan put it more simply: “The system works and that's all I care about.” ...

While the holidays are over, ADT continues to offer big online discounts for its packages. Both the Security Starter and ...