UNSPSC 45111710: Chime and siren unit

A type of device that has the generation of 4 scales of chime for upward or downward level of soft sound color used to inform the beginning and ending of information broadcasting.

UNSPSC 45111710 Chime and siren unit is a Commodity code that names audio-signaling hardware for alerting and notification—yet state and local governments are actually buying comprehensive audio-visual integration services, live event production, classroom technology systems, and facility-wide AV infrastructure under opportunities tagged with this code. The recent solicitation activity shows a mismatch between the code's nominal scope and the work actually being procured: the opportunities span integrated AV systems design and installation, audio reinforcement for meeting spaces and stadiums, interactive classroom displays, assistive listening systems, and event production—none of which fit the discrete "chime and siren" product category the code nominally describes.

Issuing bodies range across school districts (Northside ISD in San Antonio, Cobb County Schools in Georgia, Hillsborough County Schools in Florida), cities and counties (Arlington, Santa Monica, Orlando, Wake County), universities (University of Texas at Austin, Valencia College, University of Wisconsin–Green Bay), and regional entities (Atlanta Regional Commission, Railroad Commission of Texas). School districts and municipal governments dominate recent activity. Geographic spread includes Texas, California, Florida, Georgia, Michigan, North Carolina, and multiple other states, with particular concentration in Texas and Georgia. Representative recent opportunities include Northside ISD's classroom projectors and AV equipment indefinite-quantity contract (RFP 2026072, due August 6, 2026), the City of Arlington's LED video walls for council chambers (RFP 260265, due August 20, 2026), the City of Santa Monica's citywide AV systems integration and maintenance contract (RFP 2026RFP00034, due August 3, 2026 with prevailing wage requirements), and the Railroad Commission of Texas's live audio-visual broadcasting services (IFB 455261030, due July 15, 2026 with mandatory VetHUB subcontracting plan). The code shows substantial recent activity, but vendors pursuing this code should verify that their service scope genuinely aligns with the actual work being solicited—full-systems integration, technical support, and installation—rather than the code's literal product definition.