3M Electronic Safety Systems is an electronic-security and safety-systems business in Tambaram Sanatorium, Chennai. It focuses more specifically on surveillance, alarm, and related installation/repair work than a typical general-electronics shop.
What people say
Installation quality is a recurring positive: customers mention neat CCTV installation tailored to their requirements.
Service and value also receive praise, including reasonable charges, quality materials, clear explanations, and responsiveness after installation.