Twenty20's greatest strength is our people. We have a dedicated team of industry experts that are committed to delivering you comprehensive security and automation solutions, supported by top-notch customer service and ongoing technical support. The Twenty20 Leadership team brings decades... Read More
DoorKing, Inc. (we are also known as “DKS”) was established in 1948 and is one of the country's leading manufacturers of telephone entry systems, vehicular gate operators, parking control products and access control systems in the United States. DoorKing was the first company to use... Read More
Trine is guided by a single principle: to provide customers with innovative product design and development and to maintain the highest level of product quality and customer service possible. We are a leading manufacturer of electric strikes providing one box solutions for all your installation... Read More
Aiphone AX Compatible Digitally Encoded Fiber Transmission System with One Channel Video, One Bi-directional Audio and Two Bi-directional Contact Closures Read more »
Digitally-Encoded 1 Channel Video, 1 Simplex Audio and Return Multi-Protocol Data Channel Read more »
Digitally-Encoded Two Bi-directional 8-Bit or 10-Bit Video, Two Bi-directional 24-Bit Audio and two RS-422 data over Two fibers Read more »