View Our Expanded Product Line

We’re your partner for trusted service and high-quality security products. For more than 30 years, GSI has served the independent security industry nationwide with a wide variety of high-quality, low voltage products, including CCTV cameras, DVRs, sirens, power supplies and enclosures. See our full product lineup.

Who We Are

Beginning in 1985, the family owned and operated Golden State Instrument Company (GSI) has been serving the independent security industry with high quality low voltage products. Since opening our doors for business, our approach to customers has been, and continues to be, “How can we serve you?”

What We Do

With over 30 years of design, engineering, and manufacturing experience, GSI takes great pride in offering superior, UL Listed low voltage products including: CCTV cameras, DVRs, NVRs, sirens, speakers, test monitors, power supplies, accessories and enclosures. GSI takes pride in providing exemplary customer service and partnering with our customers to provide technical design assistance for special projects.

Where We Came From

With the developments in 2016, we are excited to expand our product line and continue our partnership with our customers, and assist them into the challenging and exciting future. GSI is not just one of your vendors, we are your partner in business!