[Home Security Systems Specialist | Smith's Alarms & Electronics - ADT Alternative Smith's Alarms & Electronics, Inc. specializes in fire alarms and security systems installations, video surveillance systems and home theater entertainment electronics. We have been providing top-notch security and entertainment services to the greater Los Angeles area for over 30 years. Our team of highly qualified professionals are available 7 days a week to assist with any installation, repair or maintenance needs you may have. Whether it's an alarm system for your business or a home theater ]