The purpose of the security system is to protect the environment from thieves and intruders.
- Auto Dial Security Alarm is one of the most important device for the owner
- It has of motion sensor which detects the motion of a person in certain area being mounted( usually motion sensor mounts on doors and windows)
- Once the sensor identifies the intruder(s), then the alarm will sound and even so it can automatically call up to 5 different preset numbers you have been selected
- The sound will also let your neighbors know that there is something going on in the household
- Furthermore, it provides the fast contact to the 911 emergency services once you receive the call from this alarm when there is no neighbors in your areas
- It requires to install a battery connects to the AC adaptor and telephone line
Sources:
http://www.safewise.com/home-security-faq/how-do-security-systems-work
https://www.amazon.com/Auto-Dialer-Security-Safety-Alarm/dp/B00FKZVKSG