Company details for:

Peak Sensors Ltd

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The Bridge,
Beresford Way,
Chesterfield,
Derbyshire,
S41 9FG,
United Kingdom

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Products / Services

Rare Metal Thermocouples

Rare Metal thermocouples are made from conductors containing platinum and rhodium alloys and are suited for measuring high temperatures up to +1700°C. They are a rugged design, suited for tough industrial use. We manufacture and design rare metal thermocouple assemblies

Base Metal Thermocouples

We manufacture and design base metal thermocouple assemblies. Base metal thermocouples are made from conductors containing nickel alloys and depending on thermocouple type are suited for measuring temperatures between -270 to +1300°C. They are a rugged design, suited for tough industrial use.

Mineral Insulated Thermocouples

We manufacture and design mineral insulated thermocouples. Mineral insulated thermocouples consist of an outer metal sheath which protects the thermocouple elements from damage and contamination, this sheath is malleable so mineral insulated thermocouples can be easily bent and formed into a variety of shapes to suit your application. The inner thermocouple elements are insulated with magnesium oxide powder, tightly packed so no air is trapped inside, this provides great thermal conductivity.

Cable Thermocouples

We manufacture and design cable thermocouples, often called wire thermocouples. Cable thermocouples are a very cost effective construction of thermocouple with many options available to attach the sensor to your process. Exposed junctions are common with wire thermocouples as it gives a very quick response. The maximum temperature for a cable thermocouple is determined by its insulation but there are high temperature options such as glass fibre if required.

Thermocouple Inserts

Thermocouple Inserts are commonly used in pocket, thermowell or head assemblies. They are constructed with thermocouple elements insulated and protected by mineral insulated powder, which is then packed inside a rigid metal tube. They are very similar to mineral insulated thermocouples but they cannot be bent to shape.

Thermocouple Elements

As well as full thermocouples we can supply basic thermocouple elements either uninsulated or insulated for further assembly into sheaths or equipment.

Mineral Insulated RTDs

We manufacture and design mineral insulated resistance thermometers. Resistance thermometers are often called platinum resistance thermometers (PRTs), resistance thermometer detectors (RTDs) or simply Pt100 sensors. Mineral insulated resistance thermometers consists of an external metal sheath which protects the P100 element from damage and contamination. This outer sheath is insulated with magnesium oxide powder, tightly packed so no air is trapped inside. This not only gives great thermal conductivity but mineral insulated RTD can be bent into a variety of shapes to suit your application.

Cable Resistance Thermometers

We manufacture and design cable resistance thermometers, often called cable RTD Pt100, cable Pt100, Pt 100 sensors or Pt 100 thermocouples. Cable resistance thermometers are very cost-effective for temperature measurements below 260°C, although some designs are good up to 500°C. The construction of a cable resistance thermometer consists of a RTD element, often a Pt100 securely attached to a length of cable. The Pt100 element can then be protected in a number of ways and designed to get the best measurement from your process. The maximum temperature for a cable resistance thermometer is determined by its insulation but there are high-temperature options such as glass fibre if required.

Resistance Thermometer Inserts

Resistance Thermometer Inserts are commonly used in pocket, thermowell or head assemblies. They are constructed with Pt100 sensors insulated and protected by mineral insulated powder, which is then packed inside a rigid metal tube. They are very similar to mineral insulated resistance thermometers but they cannot be bent to shape.

Resistance Thermometer Elements

As well as full resistance thermometers we can supply basic resistance elements either uninsulated or insulated for further assembly into sheaths or equipment.

Exhaust Gas Temperature Sensors (Anti-Vibration)

Thermocouples to measure the temperature of exhaust gases are a key element of modern engine management. Measuring the temperature of exhaust gas can provide an important input into system algorithms to improve efficiency, reduce pollutants and extend engine life. Peak Sensors manufacture exhaust gas temperature sensors for a wide variety of automotive brands and projects.

Plastic Extruder Temperature Sensor (Bayonet Thermocouple)

Also known as a bayonet thermocouple, it is often used in plastic extruders and extrusion machinery.

Aluminium Remelt Sensor

An Aluminium Remelt Sensor is used in the secondary processing of aluminium. It is a very inexpensive solution to measuring the temperature of molten aluminium.

POX CO Reactor Thermocouple Probe

A POX Probe, sometimes know as a CO reactor thermocouple, is a special design of thermocouple sensor found in partial oxidation plants. Partial Oxidation Plants are used to form hydrogen, carbon monoxide, carbon dioxide or Synthesis Gas (syngas). A typical assembly consists of a ceramic sheath at the hot end of the probe. Followed by an Inconel coating for further temperature resistance. A forged flange, which is them fitted and welded to the sheath. Finally an RTJ is used to press the flange and the sheath together, forming a pressure seal. This assembly can work effectively at temperatures with a maximum of 1500°C.

Glass Level Electrode Sensor

A Glass Level Electrode (GLE) is a sensor that is used to detect the level of glass in a forehearth during certain glass manufacturing processes. A platinum pin makes contact with the glass surface, and an electrical circuit is closed. This produces a signal when this occurs. We can construct glass level electrodes exactly to your specifications or drawings.

Soil Temperature Probe (Compost)

Commercial composting demands good soil temperature measurement and control. Elevated soil temperatures are required for throughput management and legal compliance. A compost temperature sensor is often used to measure the temperature of the composting process. We can supply watertight temperature sensors suitable as soil probes for commercial composting.

Glass Bubbler Assembly

Glass Bubblers are used in various glass manufacturing processes to inject gas into molten glass. The stirring effect of the gas flow, allows rapid colour changes to take place. As well as this by stirring the glass with a glass bubbler, hot spot bubbling can take

place which improves the overall quality of the glass produced.
We can design and supply industrial glass bubblers which are designed and manufactured to your specification for use in new or existing glass bubbler systems. This may include changing the size of the gas duct holes, or changing the gas fittings at the cold end of the glass bubbler. Common designs include an inconel outer sheath with a recrystallised alumina inner tube.

Special Mineral Insulated Thermocouple with Standard Plug & Flexible Sheath

We’ve manufactured and released a special design mineral insulated thermocouple with standard plug and flexible sheath. Check out the short product video.

Thermistor Probes & Assemblies

We specialise in the manufacture of thermocouples and resistance thermometers and this expertise translates in the manufacture of thermistor assemblies. Each year we supply volumes of thermistor sensors both for one-off and repeating contracts. Our thermistor assemblies are used in a variety of near ambient applications in many industries including heating, ventilation, and air conditioning (HVAC), refrigeration, dairy farming and instrumentation manufacture (such as weather stations and hand held instruments).

Thermowells for Temperature Sensors

Thermowells are small tubular fittings which are used in temperature measurement to protect the temperature sensor from damage that could occur during an industrial process. Thermowells are otherwise commonly known as solid drilled pockets as they consist of a metal bar stock that is drilled to create an open end where the sense is inserted. If the sensor was to break during application, the user could easily replace the existing sensor with a new one.

Common uses of thermowells are very similar to that of other components. They can be used in both an existing temperature sensor setup or can be added to a new design specification. They are used in many high temperature applications because they can work effectively up to temperatures surrounding 1200 °C.

Temperature Sensors

At Peak Sensors Ltd, we specialise in providing temperature sensors, delivering cutting-edge solutions to address a variety of industrial requirements. Our commitment to precision and reliability has positioned us as a leading force in temperature measurement technology. Our range of temperature sensors caters to a diverse range of applications, spanning industrial processes, research endeavors, and environmental monitoring. Renowned for our innovation and technical prowess, we utilise state-of-the-art manufacturing techniques to produce sensors that offer accurate and consistent temperature readings. Our products are engineered to withstand challenging operating conditions, ensuring both longevity and robust performance. With a customer-centric approach, we not only deliver high-quality sensors but also provide comprehensive support and customisation options, establishing ourselves as a trusted partner for industries in need of precise temperature measurement solutions.

Thermocouple Connectors

At Peak Sensors Ltd, we specialise in providing high-quality thermocouple connectors, establishing ourselves as a key player in the realm of temperature measurement solutions. With a steadfast focus on precision and reliability, we've garnered a strong reputation for delivering top-notch connectors tailored to the diverse needs of various industries. Our thermocouple connectors are crafted with cutting-edge technology, ensuring accurate and consistent temperature readings even in challenging environments. Our commitment to innovation and technical excellence in the manufacturing process results in connectors that not only endure rigorous conditions but also deliver long-lasting performance. Recognising the importance of customer satisfaction, we offer comprehensive support and customisation options to address specific requirements, solidifying our position as a trusted provider of thermocouple connectors for industries seeking dependable temperature measurement solutions.

Stainless Steel Compression Fittings

At Peak Sensors Ltd, we take pride in being a leading provider of stainless steel compression fittings, positioning ourselves as a trusted presence in the industrial solutions landscape. Our focus on delivering high-quality fittings reflects our commitment to precision and durability, addressing the diverse needs of industries with excellence. Utilising advanced technology, our stainless steel compression fittings are meticulously engineered to ensure robust performance and resistance to corrosion in challenging environments. We are recognised for our expertise and innovative approach, manufacturing fittings that adhere to stringent quality standards. Whether applied in industrial processes or research contexts, our fittings provide a reliable solution for fluid and gas systems, featuring durable and leak-resistant connections. With a customer-centric philosophy, we not only provide exceptional products but also offer comprehensive support and customisation options, solidifying our standing as a trusted partner for industries seeking dependable stainless steel compression fittings.

Ceramic Tubes

At Peak Sensors Ltd, we proudly serve as a distinguished supplier of ceramic tubes, establishing our reputation as a reliable source for cutting-edge industrial solutions. Specialising in high-quality ceramic components, our commitment to excellence resonates across a broad spectrum of industries. The ceramic tubes we provide are meticulously crafted with precision and expertise, showcasing resilience and durability in diverse applications. By employing state-of-the-art manufacturing techniques, we ensure that our ceramic tubes meet stringent quality standards, rendering them suitable for various industrial processes and environments. Our dedication to innovation and technical proficiency positions us as key players in the field, delivering reliable ceramic solutions that enhance the efficiency and longevity of our clients' systems. With a customer-centric ethos, we not only deliver top-tier products but also offer comprehensive support and customisation options, reinforcing our role as trusted partners for industries seeking dependable ceramic tubes.

Vertex Temperature Controllers

At Peak Sensors Ltd, we are a leading provider of advanced industrial solutions, known for supplying cutting-edge Vertex Temperature Controllers. Specialising in high-precision temperature control technology, we have established ourselves as a trusted source for industries with stringent temperature management requirements. The Vertex Temperature Controllers we offer are designed to deliver precise and reliable temperature regulation in diverse applications. Whether applied in industrial processes, research settings, or other critical environments, these controllers exemplify our commitment to innovation and technical excellence. With state-of-the-art features and robust functionality, the Vertex Temperature Controllers contribute to enhanced efficiency and optimised performance in temperature-sensitive systems. We go beyond delivering top-tier products; we also offer comprehensive support and customisation options, solidifying our position as a valued partner for industries seeking dependable and advanced temperature control solutions.

About us

About Peak Sensors Limited

Peak Sensors is a British manufacturer specialising in high-quality industrial temperature sensors and measurement solutions. Based in Chesterfield, Derbyshire, we have been designing and manufacturing precision temperature sensors for over 25 years, serving a diverse range of industries across the UK and worldwide. Our dedication to engineering excellence, innovation and customer service has earned us a reputation as one of the UK's leading temperature sensor specialists.

We are proud to be ISO 9001:2025 certified and member of Made in Britain reflecting our commitment to outstanding quality, ethical manufacturing, and continuous improvement. Our mission is simple: to help our customers achieve greater accuracy, reliability, and efficiency through world-class temperature measurement technology.

What We Do

At Peak Sensors, we design and manufacture custom and standard temperature sensors for use in challenging industrial environments. Our expertise covers all aspects of temperature measurement - from initial consultation and design, through to production, calibration, and global delivery. We work closely with clients in a wide range of sectors, including glass production, steelmaking, ceramics, incineration, power generation, pharmaceuticals, and food processing. Whether you need a one-off prototype or a high-volume production run, our experienced engineers can design the ideal sensor to meet your exact process requirements.

Our services include:

Bespoke sensor design and engineering support.
Fast manufacture and delivery from our UK facility.
Calibration, testing and quality assurance.
Worldwide shipping and reliable after-sales service.

We pride ourselves on our technical expertise and collaborative approach - helping customers identify the most suitable temperature sensor for their specific process, materials, and temperature range.

Product Categories

Thermocouples

Our comprehensive range of thermocouples is designed to suit a wide variety of temperature application:

Base Metal Thermocouples (Types K, J, T, N).
Mineral Insulated (MI) Thermocouples for durability and flexibility.
Rare Metal Thermocouples (Types R, S, B) for high-temperature applications.
Thermocouple Inserts and Elements for easy replacement and integration.
Thermocouple Cables and Assemblies

These thermocouples are used in industries that demand accuracy and resilience under extreme heat - such as furnaces, kilns, and glass manufacturing.

2.Resistance Thermometers (RTDs)

Our RTDs offer exceptional stability and accuracy for moderate to high-temperature measurement. Products include:

PT100 and PT1000 Sensors
Mineral Insulated RTDs
RTD Elements and Probes
Surface, Air, and Liquid RTD Sensors

RTDs are ideal for applications requiring long-term accuracy and reliability, such as HVAC systems, food processing and laboratory equipment.

3. Accessories and Customs Assemblies

We also supply a wide range of complementary components, including:

Thermowells and Protection Tubes
Connectors, Plugs and Sockets
Compensating and Extension Cables
Custom Sensors Assemblies

Industries We Serve

Glass and Ceramics Manufacturing
Metals and Foundry Applications
Energy and Power Generation
Pharmaceutical and Chemical Processing
Food and Beverage Production
Environmental and Waste Management

Our sensors are trusted by leading organisations around the world for their reliability, durability, and precision.

Why Choose Peak Sensors?

Over 25 years of experience in temperature measurement technology
A British company certified to ISO 9001:2015 standard.
Expertise in both standard and bespoke designs
Rapid response and fast manufacturing turnaround
Trusted by over 2,300 clients globally
Excellent technical support and customer care.

Contact Us

Discover how Peak Sensors can improve the accuracy and efficiency of your temperature measurement process. Visit our website www.peaksensors.com and explore our full range of products, request a quotation, or speak directly with our expert technical team.