Our office will be closed from the 20th of December until the 4th of January.

We would like to wish all of our clients and customers a Merry Christmas and a Happy New Year.

From all of us at Sentinor.

The sun is setting on 2G and 3G, are your hatch protection systems 4G ready?

As of April 1st 2023, all new Watercress 4 systems will come with 4G modems installed as standard.

New 4G capable systems will enable a smooth and hassle-free transition to the 4G network, allowing our clients to upgrade their SIM provisioning prior to the 2G/3G sunset, saving valuable time and resources.

All newly supplied systems and replacement PCBs remain backward compatible with legacy 2G/3G networks and SIM cards, whilst those networks are still active.

We have a number of options available to clients currently using older generation Watercress systems which will require an upgrade prior to the expected 2G/3G sunset.

For more information, please contact us at info@sentinor.com or call 01934 743440.


Our office will be closed from the 17th of December until the 4th of January.

We would like to wish all of our clients and customers a Merry Christmas and a happy New Year.

From all of us at Sentinor.

Sentinor would like to welcome their new employee Joe to the team.
 Joe will be working as a workshop technician, manufacturing and testing Sentinor's Watercress alarm systems and sensors.

We are are looking for a new Workshop Assembly Technician to join our team in Cheddar, Somerset.

The role will involve assembling and testing our bespoke security solutions used for the protection of critical national infrastructure.

For more information, visit our Careers page or Download the job description.

From the 1st of April 2021, Sentinor will be increasing the price of paging system servicing and site visits from £340 to £440.

Book your paging system service in now to save money before the price increases.

Site visits and services can be scheduled to take place after the 1st of April 2021 but must be booked in before the 31st of March 2021 to take advantage of the current pricing.

Call: 01934 743440
Email: sales@sentinor.com

Sentinor have achieved a 100% score in a recent ISO9001 audit.

At Sentinor, quality is always at the forefront of everything we do, from manufacturing to site servicing and installation. ISO9001 ensures that all products and services supplied by Sentinor are of the highest standard.

Staff at Sentinor will continue to work over the current lockdown, providing support and services to critical utilities across the UK.

We will be working with a limited number of office staff.
Where staff are unable to work from home, strict social distancing guidelines and COVID safe working measures will be followed.

To find out more about how Sentinor are working safely through the pandemic, please visit our COVID-19 information page.


Continued hard work has achieved Sentinor a score of 100% in their Achilles quality audit.

As a manufacturer, supplier of goods and maintenance provider, this assures all of our clients that they will always receive quality products and services from Sentinor.

The Achilles UVDB Verify audit assesses the quality of an organisations Health, Safety, Environment, Quality management systems and Corporate Social Responsibility.

Cookie policyPrivacy policyHealth and safety policyQuality policyCOVID-19
Terms and conditionsCareers
Sentinor Ltd 2019