UNSPSC 45111718: Delay unit

Equipment that improves the time difference arising between the image and sound for slow propagation velocity of the sound.

UNSPSC 45111718 Delay unit is a Commodity code used by state and local governments to classify audio-visual and presentation infrastructure components that manage signal timing and synchronization in broadcast, staging, and meeting-room environments. State and local buyers procure delay units as components within larger audiovisual system integrations, often bundled with projectors, speakers, control systems, and cabling as part of facility upgrades or new construction. The code sees activity from school districts (elementary through university), city and county government, special districts, and state agencies. School districts dominate recent solicitation volume, with independent school districts in Texas (Northside, Harlingen, Jones County, Cobb County), Michigan (Walled Lake Consolidated, Van Dyke Public Schools), Georgia (Clarke County, DeKalb, Fulton County), and Florida (Hillsborough County Public Schools, Valencia College) posting equipment and installation bids that include delay units as line items within broader classroom technology or facility renovation packages. City and county governments—including Wake County (North Carolina), Arlington (Texas), Santa Monica (California), Orlando (Florida), and Volusia County (Florida)—solicit delay units as components of council chambers, courtroom, emergency operations center, and entertainment venue AV upgrades. University systems (University of Texas at Austin, UW-Green Bay, University of Texas at Tyler) specify delay units within performing arts and instructional facility audio renovations. Across these opportunities, delay units appear not as standalone procurements but as specified equipment within integrated turnkey AV system contracts, often bundled with control processors, amplifiers, loudspeakers, and installation labor under RFP or IFB structures.

Recent activity is geographically distributed across Texas (Arlington, San Antonio, Austin, Harlingen, Longview), Georgia (Atlanta, Athens, College Park, DeKalb, Fulton, Gray), Florida (Orlando, Tampa, Daytona Beach, Key West, Tampa Bay area), Michigan (Warren, Walled Lake, Pontiac), California (Santa Monica, Los Angeles), North Carolina (Raleigh), Colorado, Ohio (Cleveland), Connecticut (New Haven), Oregon (Eugene), and Wisconsin (Green Bay), with heaviest concentration in Texas and Georgia school districts. Representative recent solicitations include Northside Independent School District (NISD) RFP2026072 (San Antonio, Texas, closed August 6, 2026) for classroom projectors and AV equipment installation and repair services; City of Santa Monica 2026RFP00034 (closed August 3, 2026) for citywide audio-visual systems integration, maintenance, and support with prevailing wage requirements and five-year service term; Railroad Commission of Texas IFB #455-26-1030 (closed July 15, 2026) for live audio-visual broadcasting services covering webcast and on-demand delivery for 20 Commission meetings, five hearings, and four town halls annually; and DeKalb County School District RFP 26-728 (closed February 26, 2026) for high school commencement audio, video, and staging services with five-day event scope and optional multi-year extensions. Delay units are specified in these contracts as signal processors that synchronize audio and video feeds across distributed presentation environments—essential in multi-camera live broadcasts, large council chambers with remote speaker locations, stadium bowl sound systems, and interactive classroom installations where timing latency between audio and visual elements must be controlled to within milliseconds for ADA compliance and audience comprehension.