Door Security Products is located in Rapid City, South Dakota. DSP over the last 10 years has provided local solutions for low voltage security systems for both commercial and residential clientele. Within our site are products that we offer to our local customers and would like to offer to you. You will find links to product information, brochures, pictures, and even news stories relating to our field. Browse our site and feel free to contact us with any questions. Information on contacting our facility is located within the contact DSP link.