ADT is the most trusted trusted home security camera system company in the industry. Keeping you safe is our business. But don’t take our word for it; watch the ADT Lifesaver Testimonial Videos to hear real stories from real people who’ve had their lives and homes saved by ADT. Additionally, check out our ADT Pulse® app downloads to see exactly what technology we offer in terms of home safety. Our security camera system equipment is easy to use, but should any questions arise, you can download our ADT security manuals , check the ADT security FAQs page, or contact ADT directly. We keep your home secure 24/7 and aim to provide you with round-the-clock support as well through ADT customer service .