UNSPSC 41111915: Bi metallic sensors

UNSPSC 41111915 Bi metallic sensors is a Commodity code that encompasses temperature-monitoring and hazard-detection sensors used in laboratory, water treatment, wastewater, and facility-management applications across state and local government operations. Recent state and local solicitations show the code tracking primarily environmental monitoring systems and atmospheric hazard detection—not the code's nominal scope of bi metallic thermal switches alone. The City of Phoenix Water Services Department, for example, is procuring fixed atmospheric monitoring instruments to detect hydrogen sulfide, methane, oxygen depletion, chlorine, ammonia, ozone, chlorine dioxide, and carbon monoxide at water and wastewater facilities; the Georgia Department of Agriculture Laboratory Division is seeking an environmental conditions monitoring system for temperature and humidity tracking across fifty-eight laboratory units. These procurements reflect a shift toward integrated sensor and alarm systems serving facility operations and compliance monitoring rather than standalone bi metallic sensor components.

Issuing bodies include municipal water and wastewater utilities, state environmental agencies, and state laboratory divisions. Geographic activity centers on the Southwest (Arizona), Southeast (Georgia), and Midwest (Illinois), with the Illinois Environmental Protection Agency posting multiple atmospheric and analytical-instrument bids. Recent solicitations include the City of Phoenix Water Services IFB for atmospheric monitoring instruments with offers due September 4, 2026; the Georgia Department of Agriculture RFQ for an environmental conditions monitoring system with responses due August 21, 2026; and the Illinois EPA IFBs for ozone transfer standards and semi-portable zero air generators (due August 27, 2026) and a tandem mass spectrometer system for pesticide analysis (due September 1, 2026). DBE and small-business participation requirements appear in multiple opportunities. Contract terms typically range from two to five years with fixed pricing for initial periods and predetermined escalation mechanisms.