Source: https://tendernation.io/opportunities/01a13bc9-8e3f-720d-8501-94c588b6f62f/supply-of-membrane-hydrophones-calibration-services-and-associated-equipment-f awarded GB open procedure # Supply of Membrane Hydrophones, Calibration Services, and Associated Equipment for Acoustic Measurement [NPL Management Limited](https://tendernation.io/buyers/npl-management-limited) Estimated value Not stated Published 11 Dec 2025 Deadline Rolling deadline ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender The contract covers the supply of specialized acoustic measurement equipment and calibration services, including: Goods: UT1604 Membrane Hydrophones (3 units, 16 micron, 0.4 mm diameter) Hydrophone Preamplifiers (3 units, with 2 m cable) ### Budget Hydrophone Mount (1 unit) ### DC Coupler with Power Supply (1 unit) Signal Amplifier for UC/UT Membrane Hydrophones (1 unit) Services: In-house calibration (1-30 MHz in 1 MHz increments), accredited to ISO/IEC 17025 by UKAS, following Clause 12 of 62127-2:2007+A2:2017 for Type II measurements. Calibration included for hydrophones and amplifier. Source Find a Tender (UK) · Notice ocds-h6vhtk-05f42b-2025-12-11T15:46:07Z [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-05f42b-2025-12-11T15:46:07Z) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile NPL Management Limited: past awards and live tenders](https://tendernation.io/buyers/npl-management-limited) ## More tenders like this [Building Repairs & Maintenance Lot 1 Electrical Lot 2 Mechanical · Derbyshire Dales District Council · 40 days left · 29 Nov 2026](https://tendernation.io/opportunities/01a15934-2662-73b5-8d63-abd6e1946ccd/building-repairs-maintenance-lot-1-electrical-lot-2-mechanical) [York and North Yorkshire Transport Sub-strategies · City of York Council · 15 days left · 4 Nov 2026](https://tendernation.io/opportunities/01a15936-5ad5-7354-87b7-8a75c88f1c3d/york-and-north-yorkshire-transport-sub-strategies) [CA18585 - ITT Repair and replacement works to whole site drainage system · Diocese of Norwich Education and Academies Trust · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a1594a-591e-7334-8085-35e92dcd67f8/ca18585-itt-repair-and-replacement-works-to-whole-site-drainage-system) [CA18489 - Askham Bryan College - Provision for External Audit Services · Askham Bryan College · 27 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a1594a-59c0-7116-83f2-f6a8be15db7d/ca18489-askham-bryan-college-provision-for-external-audit-services) [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 37 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Building Repair and Maintenance · Oldham Council · 42 days left · 1 Dec 2026](https://tendernation.io/opportunities/01a15934-1f61-73ef-a3b8-33c7808bf070/building-repair-and-maintenance)