---
title: "Zephyr sensor 2 year service and maintenance renewal"
ocid: "ocds-h6vhtk-05f91f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05f91f"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05f91f.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05f91f.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "CITY OF BRADFORD METROPOLITAN DISTRICT COUNCIL"
published: "2025-12-18"
---

# Zephyr sensor 2 year service and maintenance renewal

Buyer: CITY OF BRADFORD METROPOLITAN DISTRICT COUNCIL  
Current stage: Award  
OCID: ocds-h6vhtk-05f91f

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## Summary

The City of Bradford Metropolitan District Council has conducted a procurement process to extend the service and maintenance contract for a network of 12 Zephyr air pollution sensors. The contract, titled "Zephyr sensor 2 year service and maintenance renewal", falls under the services category within the Air Quality Management industry. Based in Bradford, United Kingdom, the procurement process was finalised with the award made to EARTHSENSE SYSTEMS LIMITED, a small to medium-sized enterprise located in Leicester. The procurement method was direct, deemed below threshold and without competition, with key dates marking the contract period from 18th December 2025 to 9th June 2027.

This tender presents significant business growth opportunities, particularly for research and environmental monitoring organisations as well as service providers specialising in sensor maintenance and air quality management. Companies with expertise in maintaining electrical or environmental monitoring equipment would find this contract particularly suitable given the nature of the services required. The strategic renewal of such services aims to ensure continuous air quality monitoring, presenting an ongoing opportunity for businesses capable of providing reliable and expert maintenance services.

## Notice

To extend the service and maintenance contract on a network of 12 Zephyr air pollution sensors first purchased in February 2023 using a ringfenced Defra air quality grant. The sensors have a two-year lifespan and unless the sensors inside the units are replaced by the end of May 2025 the network will have to be shut down and mothballed.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/084385-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 18 Dec 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 18 Dec 2025 |
| Contract period | 18 Dec 2025 - 9 Jun 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £44,000 |
| Contracts value | £44,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | CITY OF BRADFORD METROPOLITAN DISTRICT COUNCIL |
| Locality | BRADFORD |
| Post town | Bradford |
| Postcode | BD1 1HX |
| Country | England |
| ITL 1 | TLE Yorkshire and The Humber |
| ITL 2 | TLE4 West Yorkshire |
| ITL 3 | TLE41 Bradford |
| Local authority | Bradford |
| Electoral ward | City |
| Westminster constituency | Bradford West |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | EARTHSENSE SYSTEMS |

## CPV Codes

### Divisions

- 35 - Security, fire-fighting, police and defence equipment
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 35125100 - Sensors
- 90731100 - Air quality management

## Release History

- 18 Dec 2025 at 13:26 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/084385-2025
- 18 Dec 2025 at 13:19 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/084379-2025
- 18 Dec 2025 at 13:14 - Award - UK5 - Transparency Notice - https://www.find-tender.service.gov.uk/Notice/084373-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/084385-2025
  18th December 2025 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/084379-2025
  18th December 2025 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/084373-2025
  18th December 2025 - Transparency notice on Find a Tender

## Notice URLs

- https://www.earthsense.co.uk/
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05f91f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05f91f.json.