Detection Devices
Commercial > Fire & life Safety > Detection Devices
There are various types of detection equipment and many will work on all types of system (conventional, addressable, and wireless). The type and number of detectors will be specified by our system designer and/or surveyor.
Manual Call point (MCP)
Used on most fire alarm systems, these units are installed at exit points of the building and at each change of floor level.
Smoke detectors
Used in most areas and are the most popular type of detector used in most buildings. There are two types: optical and ionisation, although, ionisation is rarely used these days. Smoke detectors are always used on escape routes because of their early indication of fire.
Heat Detectors
Installed where it is not feasible to use a smoke detector such as kitchens or areas that suffer from dust or condensation. Heat detectors come in 2 types: fixed temperature used in areas such as kitchens or boiler rooms where the temperatures can fluctuate but will trigger when the set maximum temperature is reached. The second is rate of rise. These detectors work by sensing a sharp change in temperature. An example
could be a garage workshop where smoke detectors may trigger false alarms.
Multi Sensors
These sensors have the benefit of smoke and heat detector combined into one unit and can either be used together or one element of the detector. They can be used in difficult areas to avoid false alarms
CO Detectors
Not to be confused with the domestic CO detectors used in HMO type properties. These units, whilst not used very often, are for buildings where a traditional smoke detector cannot be used and a heat detector is not appropriate. They are not as effective as traditional smoke detectors and should be used as part of a fire detection solution and not the sole means of detection.
Beam Detectors
Typically used in warehouses and areas with a large high coverage. A beam detector can cover an area of 15m x 100/150m and are often more cost effective to install than smoke detectors which would require in excess of 20 devices to cover the same area. Beam detectors are point to point so need line of sight from its transmitter and receiver. They are particularly useful in warehouses as the transmitter and receivers are positioned at each end of the building as opposed to many smoke detectors spread between racks and fork lift truck areas, making installation and servicing a lot easier.
Thank you for your interest in our products and Services
If you are looking for more information on the products and services we provide, or some advice simply complete the form on the right and a member of our team will be in touch with you.
For larger projects we may need to carry out a site survey but our experts will be able to advise you once we have made contact
Simply complete the form on the right and a member of our team will be in touch with you.
Your Information
Get Started Today
Ready to protect your home with our affordable security system rentals?
Contact us today to learn more or to schedule your free consultation.
Call us now on 0345 468 0927
Case studies
30/01/2026
Case Studies
Walmley Social Club Security Upgrade: Intruder Alarm and Addressable Fire Alarm Installation
Walmley Social Club is a busy, long-established private members’ venue in Sutton Coldfield, Birmingham, hosting everything from snooker and bowling to live music and large private events. To ens...
10/11/2025
Public Sector
Dr Milley’s Hospital Upgrades to a Modern Wireless Fire Alarm System
Location: Lichfield, Staffordshire Project: Wireless fire alarm system installation
04/06/2024
Residential
Comprehensive Security Upgrade for a Warwickshire Village Home
The Results
Our client, Mr Bryan Davis, commented: “I would like to thank you for your help and assistance with the alarms and CCTV, which are now fully inst...
14/06/2023
Schools
Bredon Hill Academy
Bredon Hill Academy is a well-regarded, 468-pupil middle school situated in the village of Ashton-under-Hill, four miles south of Evesham in Worcestershire.
15/05/2023
SMEs
Cookes Furniture & Storage
Cookes Storage Managing Director, James Pike, said he had been greatly impressed with the professionalism, service and attention to detail shown by the Justice team. “Initially, a very thorough ...
12/12/2022
Schools
The Shrubbery School
Founded in 1930, The Shrubbery School is the oldest co-educational independent school in Sutton Coldfield. Catering for children aged 3-11, the school operates from a part listed building and wa...
08/08/2022
Commercial
KLM Storage (Midlands) Ltd
West Midlands based KLM Storage is a long-established business, providing serviced warehousing and distribution solutions with a global coverage. Operating from an extensive 120,000 sq. ft site,...
04/05/2022
Commercial
Lodent Precision Ltd
Lodent had experienced a series of costly and disruptive thefts from their yard on an industrial estate in Staffordshire close to the M6 toll road north of Walsall and Wolverhampton.
17/12/2021
SMEs
Green Frog Power
Summary/background of company Green Frog Power builds and operates power stations in the United Kingdom, supplying stand-by power to the National Grid. ...
17/12/2021
Sports
Aston Villa Football Club, Aston, Birmingham
Instalment/solutions provided:
Intruder alarm systems
Aston Villa FC is a premiership football club, with a ground capacity of around 40,000, the largest in the Birmingham area. ...
17/12/2021
Public Sector
Job Centres, Staffordshire and West Midland
Instalment/solutions provided:
Integrated intruder alarm and smoke cloak systems
Local Jobcentres in the West Midlands provide information on available work opportunities and fa...
17/12/2021
Schools
John Wilmott School Sutton Coldfield West Midlands
Instalment/solutions provided:
Wide range of school security systems
At the John Wilmott School in Sutton Coldfield West Midlands, there was a need to enhance the existing securi...
04/11/2021
Commercial
TST Cosmetics Bodyshop, Wolverhampton
Instalment/solutions provided:
CCTV and intruder alarm installation
TST Cosmetics is part of the Innovative Repair Group, which runs vehicle bodyshops across Wales and the Midlan...
04/11/2021
Commercial
Chambers Ford motor dealers, dual sites
Instalment/solutions provided
Detector activated CCTV systems
Chambers Ford is a large, successful motor dealership with multiple sites across the country, including at Sutton Co...
22/06/2021
Construction
Bowmer and Kirkland
Bowmer and Kirkland was founded in 1923 and is one of the UK’s most successful privately owned construction, engineering and development groups.
22/06/2021
Local Authority
The Red Rose shopping Centre, Sutton Coldfield
Instalment/solutions provided:
Fire detection and alarm system
The Red Rose shopping Centre (Formerly known as the Sainsbury Centre) in Sutton Coldfield West Midlands is a shoppi...
22/06/2021
Residential
Multiple major house build companies
Instalment/solutions provided:
Intruder alarms
We have provided security solutions for most of the major house builders including Persimmon Homes, Laing, Bellway, Crest Nicholson...
22/06/2021
Retail
JD Sports
Instalment/solutions provided:
Intruder alarm & CCTV
JD Sports Retail was founded in 1981 and has grown over the years successfully acquiring other brand leaders such as First Sp...
22/06/2021
SMEs
SME's
Green Frog Power Builds and operates power stations in the United Kingdom. They supply standby power to the National Grid. Their sites are largely unmanned and Justice was contracted to come up ...
22/06/2021
Surgeries
Multiple doctor & dental surgeries
Instalment/solutions provided:
Integrated CCTV systems, Panic alarms and door access control devices
We have worked with a wide range of Doctors and Dental surgeries of differing...
21/06/2021
Banking
HSBC
HSBC is one of Britain’s largest Banks and has recently had a refurbishment of most of its Branches. Justice Fire and Security was contracted to carry out the upgrades and alterations to the Fir...