Security alarms and monitoring services often go hand in hand together, as they complement each other really well. Basically, most home security companies have their own team of highly skilled operators, who learned how to react to an emergency. After your defense system detects signs of a home intrusion, the monitoring personnel will be contacted too. The operators notify the residents, and simultaneously dispatch police forces. The scenario is the same with the fire and CO detectors. The main point of having an active monitoring service is that they act on your behalf. Sometimes homeowners are unavailable or miss the notifications while at the workplace or travelling. But the operators are vigilant 24/7, and escalate the arrival of help givers.