LifeShield Security is a security system that can be installed without professional help. It can be monitored by the homeowner, and does not rely on a single central alarm. Brinks Home Security is a similar system, as it includes an ADT signal and multiple alarms (such as fire and carbon monoxide alarms). Brinks has a monthly fee of $36.99, while LifeShield has a monthly fee of $29.99.
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