UNSPSC 41112423: Pressure altimeter

A meter which measures the altitude by using the pressure difference of atmosphere.

UNSPSC 41112423 Pressure altimeter is a Commodity code that covers pressure measurement and sensing equipment used in water, wastewater, and industrial process control applications. State and local governments procure pressure transmitters, pressure gauges, pressure switches, diaphragm seals, and related instrumentation for municipal water treatment, wastewater treatment, distribution systems, collection systems, and facility monitoring. Equipment is sourced both as individual off-the-shelf items through competitive RFQs and ITBs and as components of larger integrated control and monitoring systems. Issuing bodies include city water and wastewater departments (Phoenix, Tampa, Gallup), county water authorities (Collier County), and regional waste-to-energy operators (Solid Waste Authority of Palm Beach County). Cities typically acquire pressure instrumentation on one- to five-year supply agreements with authorized distributors; county and regional authorities often bundle pressure sensors, temperature equipment, and control systems into larger SCADA or process-control procurements.

Recent activity concentrates in Florida and Arizona, with secondary activity in New Mexico. The City of Phoenix Water Services Department issued IFB 26-0398 for pressure and temperature instrumentation equipment with a five-year term commencing October 15, 2026, and sealed offers due August 18, 2026, naming approved manufacturers including ABB, Ashcroft, Emerson, Endress+Hauser, Honeywell, and Siemens; vendors must function as local stocking distributors with same-day or next-business-day fulfillment capability. The City of Tampa issued RFQ 26-P-00548 for inventory gauges covering pressure gauges and related equipment due October 6, 2026, and also posted an Intent to Single Source (ISS 27-X-00020) with Allen Bradley and Rockwell Automation as the sole-source vendor for pressure and process instrumentation across Water, Wastewater, and Waste to Energy Departments. Collier County, Florida issued a Notice of Intent to Single Source Gilson Engineering Sales, LLC for Siemens Process Instrumentation products, including pressure transmitters and related sensors, for a three-year term beginning October 1, 2026. The City of Gallup, New Mexico released an RFP for a SCADA system upgrade affecting 46 water distribution locations with December 11, 2025 proposal deadline, incorporating pressure monitoring as part of integrated supervisory control architecture.