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AWARD Complete

N2O Liquid Phase Monitoring Devices

Published 14 Oct 2026
14 Oct 2026


Reference: CM3480
Supply of liquid-phase nitrous oxide (N₂O) monitoring equipment and associated calibration equipment for use at Yorkshire Water wastewater treatment sites. The equipment will provide continuous monitoring of dissolved N₂O concentrations and temperature within activated sludge process lanes and includes sensor probes, controllers, calibration equipment, associated accessories and manufacturer support. Equipment must be supplied directly by the original equipment manufacturer and is required to enable the collection of N₂O monitoring data for baseline establishment and operational performance assessment. The equipment must support continuous data collection, integration with telemetry and control systems, and operation in accordance with Yorkshire Water's specified technical and environmental requirements. Equipment will be supplied to 13 wastewater treatment sites. The quantity of sensors, controllers and associated equipment required will vary by site in accordance with the site-specific design and monitoring requirements. Installation and commissioning will be undertaken by Yorkshire Water, or through a separately contracted delivery partner under an existing framework agreement.

Full CPV breakdown

  • 38344000 — Pollution-monitoring devices (primary)

Notice details

Buyer type
Utility
Competition
Direct award (no competition)
Contract type
Goods
Winning supplier
Large company
Procurement method
Direct award
Main category
Goods
Above threshold
Yes
Legal basis
UKPGA 2023/54
Notice status
Complete
Award status
Pending
Language
EN
Published
14 Oct 2026 07:07
OCID
ocds-h6vhtk-078702
Notice ID
CM3480

Organisations on this notice

Supplier Large
Langdyssen 5, Aarhus N, 8200, Denmark
GB-PPON PNQH-9554-PNGW

Key dates

Future Signature Date
23 Oct 2026 · Scheduled

Everything the publisher included in this notice, organised by section.

Organisations

Party 1 › Name YORKSHIRE WATER SERVICES LIMITED
Party 1 › Address › Street Ellington House
Party 1 › Address › Town / city Leeds
Party 1 › Address › Postcode LS10 1AB
Party 1 › Address › Country GB
Party 1 › Address › Country United Kingdom
Party 1 › Address › Region (NUTS) UKE42
Party 1 › Contact › Email itotcontracts@yorkshirewater.co.uk
Party 1 › Role buyer
Party 1 › Classification › Description Private utility
Party 2 › Name Unisense Environment A/S
Party 2 › Address › Street Langdyssen 5
Party 2 › Address › Town / city Aarhus N
Party 2 › Address › Postcode 8200
Party 2 › Address › Country DK
Party 2 › Address › Country Denmark
Party 2 › Address › Region (NUTS) DK
Party 2 › Contact › Email Sales@unisense.com
Party 2 › Role supplier
Party 2 › Link https://unisense-environment.com/
Party 2 › Business size large
Party 2 › VCSEs No

Buyer

Name YORKSHIRE WATER SERVICES LIMITED

Tender

Title N2O Liquid Phase Monitoring Devices
Status complete
Procedure type direct
Procedure Direct award
Reason for this procedure This contract is awarded as we engaged the market under a UK2 notice for a managed service but pivoted from the approach due to the need for a direct contract with the manufacturer, offering improved collaboration on potential future developments. Through the market engagement, we confirmed there is a single manufacturer capable of direct supply for liquid phase N2O monitoring devices which have been tested in the UK Water industry.
Lot › Status complete
Document › Document type Conflict of interest
Document › Description Not published

Awards

Status pending
Value › Value incl. VAT £1,800,000
Value › Value £1,500,000
Value › Currency GBP
Category goods
Above threshold Yes
Supplier › Name Unisense Environment A/S
Item › CPV › Description Pollution-monitoring devices
Item › Delivery › Delivery 1 › Region (NUTS) UKC
Item › Delivery › Delivery 1 › Country GB
Item › Delivery › Delivery 1 › Country United Kingdom
Item › Delivery › Delivery 2 › Region (NUTS) UKD
Item › Delivery › Delivery 2 › Country GB
Item › Delivery › Delivery 2 › Country United Kingdom
Item › Delivery › Delivery 3 › Region (NUTS) UKE
Item › Delivery › Delivery 3 › Country GB
Item › Delivery › Delivery 3 › Country United Kingdom
Item › Delivery › Delivery 4 › Region (NUTS) UKF
Item › Delivery › Delivery 4 › Country GB
Item › Delivery › Delivery 4 › Country United Kingdom
Item › Delivery › Delivery 5 › Region (NUTS) UKG
Item › Delivery › Delivery 5 › Country GB
Item › Delivery › Delivery 5 › Country United Kingdom
Item › Delivery › Delivery 6 › Region (NUTS) UKH
Item › Delivery › Delivery 6 › Country GB
Item › Delivery › Delivery 6 › Country United Kingdom
Item › Delivery › Delivery 7 › Region (NUTS) UKI
Item › Delivery › Delivery 7 › Country GB
Item › Delivery › Delivery 7 › Country United Kingdom
Item › Delivery › Delivery 8 › Region (NUTS) UKJ
Item › Delivery › Delivery 8 › Country GB
Item › Delivery › Delivery 8 › Country United Kingdom
Item › Delivery › Delivery 9 › Region (NUTS) UKK
Item › Delivery › Delivery 9 › Country GB
Item › Delivery › Delivery 9 › Country United Kingdom
Contract period › Start 23 Oct 2026
Contract period › End 22 Oct 2031
Document › Document type Award notice
Document › Description Transparency notice on Find a Tender
Document › Link https://www.find-tender.service.gov.uk/Notice/096760-2026
Document › Published 14 Oct 2026
Milestone › Type Future signature date
Milestone › Due 23 Oct 2026
Milestone › Status scheduled
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