Europe: +33 2 33 61 16 70 | America: +1 438 800 6104

expert in 
the design, manufacture, and distribution of temperature sensors

For more than 35 years we have been deploying our know-how in temperature measurement
to meet the expectations of our customers in the industrial, engineering and research sectors all over the world.

We have been engaged for more than 30 years in the design and manufacture of temperature sensors. Fully compatible with all control systems available on the market, the temperature range of our probes extends from -200 to + 1700 degrees.

Key figures Group

An international company...

Export more than 35 % turnover

…booming…

20% growth in 2022

…and recognized in the sector.

810000probes sold in 2022

Our engagement :
the manufacture of custom-made probes for all areas

Since its creation, flexibility has been one of GUILCOR's key values, so we always take into account the constraints of our customers, whether technical or economic.

And with us, there are no “little customers”. Whether you order 1 or 100 pieces per year, we are committed to providing you with the same quality of service.

Because satisfying our customers is at the heart of our priorities, our teams are committed on a daily basis to being flexible and adapting to their needs.

Jacques Guillon (son), President

A little of history
GUILCOR key dates

1987 Creation of Guilcor

JACQUES GUILLON
Founder of GUILCOR

1997 Development of the range of PT100, Pt1000, KTY and thermocouple probes

Jacques GUILLON (Son)
He joined the company in 1997 and was at the origin of the diversification of the group's product range.

2013 ISO9001 certified

2017

Elrick GUILLON (Grandson)
Joined the company in 2017 as a sales representative. He is also in charge of boosting communication.

2023 Passage of ISO14001

The history of the GUILCOR group begins in 1987 when Jacques GUILLON, after having been a salesman in the company LEROY SOMER, decides to create a company which would supply PTC thermistor probes to improve the thermal protection on the range of electric motors. His former employer will be his first client, the idea works and the GUILCOR company is born.

10 years later, it was his son Jacques GUILLON second of the name, who in turn showed an ability to grasp the spirit of the times when he decided to diversify the range of temperature sensors to offer PT100, Pt1000, KTY probes and thermocouple. From this date, GUILCOR widens its customer base, and continues to expand its product range by integrating in 2003 CTN thermistor probes that can be adapted to new fields of application. This is how GUILCOR will become over time one of the benchmarks for the design, manufacture and distribution of temperature sensors. Today, the group maintains a strong momentum and aims to exceed one million probes sold per year.

Our processes

The key elements

ISO 9001. and soon ISO 14001.

150 000 sensors and thermometers in stock

3 to 5 weeks of production time

Custom sensor manufacturing process

Definition of the need with the client

Depending on the knowledge of your needs, we bring our expertise to determine with you the type of sensor that will be the most suitable: the shape, the utility, the certifications, the mechanical and dimensional constraints, etc.

Technical proposition

Once your need has been clearly identified, we provide you with technical drawings in 2 or 3D and all documentation of the technical characteristics of the proposed product.

Establishment of costing and estimation of production deadlines

From these elements we quantify the prototypes, the series and the tools and machines if necessary and determine the production times.

Provision of prototypes

We agree ? Perfect, we then provide you with prototypes for the dimensional and functional validation of our products in the laboratory as well as the validation of certificates or associated documentation.

Pre-series test

Before launching into production, the pre-series are installed on your equipment to verify that there are no more technical modifications to be made.

Launch of the actual production and delivery of the products within the negotiated deadlines

Our quality standards

Today ISO 9001. since 2013

Tomorrow ISO 9001.

Our subsidiaries

The GUILCOR group and…

With the creation of its subsidiaries, the GUILCOR group is restructuring its organization in order to dissociate its design and manufacturing activities from that of the distribution to its customers of other equipment associated with its temperature probes.

Indeed, following the growth that the group has experienced in recent years, this step has become necessary both in terms of organization and clarification of its offer. Our historical and main activities around the design, manufacturing and distribution of temperature probes are thus grouped under the brand GUILCOR SENSOR. These products are aimed at industry professionals and are used in fields of application as diverse as medical, automotive, or the food industry.

Guilcor Temperature Probes

Thermometer

smart sensor

Thermal Protector (Relay)

…its subsidiaries

In order to support the complementary needs of our customers, the GUILCOR group has established exclusive distribution partnerships, all of which have the common point of working with GUILCOR temperature probes.

A thermometer always incorporates a sensor, and sometimes a probe. Our subsidiary offers all types of thermometer, from electronic to infrared, through mechanical or multi-measurement in various fields of application: culinary, medical, industrial...

This subsidiary specializes in connected sensors for all types of measurement (temperature, humidity, pressure, CO2, etc.) which not only display the measured values ​​but above all are capable of transmitting this information via the desired mode of communication (ethernet, Wifi, 4G …).

This subsidiary specializes in temperature monitoring equipment. These controllers and thermostats signal temperature exceedances or overheating and are used to monitor electrical devices (motors, generators, heating resistors, etc.).