The home security industry has a business model problem worth understanding before you buy anything: most major companies — ADT, Vivint, Brinks — make their real money on the $30–$65/month monitoring contract, not the equipment. A $200 starter kit at $35/month delivers a five-year total cost of over $2,300. The good news is that modern … Continue lendo 5 Best Home Security Systems of 2026 with No Monthly Contract