Temperature sensor

We sense innovation.

Our mission is also our passion and has been for almost 80 years. We offer solutions for our customers that are innovative, competent and above all tailored to the needs of each individual. Why? Because we are close to our customers, in close contact with each other and work in a solution-oriented manner. We are forward-looking, further develop our products for you so that you not only are up-to-date, but also a decisive step ahead of the game with us.

Complete overview of all configurable sensor groups

Product overview temperature sensor technology

Our temperature sensors are high-quality products, which are characterized by high processing quality, durability and precision. Individual solutions are a matter of course for us, meaning that we adapt or redesign all products to your requirements. You receive a product that is optimally adapted to your needs, thus unfolding its full capacity in use. The use of high-quality materials and our company-wide certified and monitored processes ensure consistent quality that meets your requirements.
If your application involves adverse operating conditions, such as aggressive acids, vapors, melt, coatings, or very low or high temperatures, you have come to the right place. If cramped conditions or other structurally complex conditions prevail within your application, we can offer you solutions in this area as well. Of course, we provide associated accessories such as connectors, thermowells and thread adapters for all sensors we produce. We also offer special solutions in the accessories sector on request.

Thermocouples acc. to DIN EN 60584

  • Fe-CuNi/L, Fe-CuNi/J, NiCr-Ni/K

  • Accuracy better than 1,5K

  • Grounded or isolated

  • Temperature range up to +1200°C

  • High quality thermocouple cable

2023-03-08T12:52:10+01:00

GF-7010

Thermocouple with bayonet lock, immersion sleeve and T-piece

2023-03-08T12:53:31+01:00

GF-7021

Resistance thermometer Bayonet and angled cable outlet

2023-03-08T12:53:57+01:00

GF-7022

Thermocouple Surface sensor with pipe clamp fixing

2023-03-08T12:54:36+01:00

GF-7024

Thermocouple Cable sensor straight protection tube

2023-03-08T12:55:33+01:00

GF-7026

Thermocouple Angled sensor with compression fitting

2023-03-08T13:15:12+01:00

GF-7031

Resistance thermometer Surface sensor with brass - segment

2023-03-08T13:15:14+01:00

GF-7031/MS

Resistance thermometer Surface sensor with brass retaining plate

2023-03-08T13:15:20+01:00

GF-7032

Resistance thermometer Screw in sensor perforated or outcutted

2023-03-08T13:15:26+01:00

GF-7033/R

Resistance thermometer Room temperature in wet rooms & containers

2023-03-08T13:15:29+01:00

GF-7038

Resistance thermometer Screw in sensor straight or angled

2023-03-08T13:15:36+01:00

GF-7038/S

Resistance thermometer Screw in sensor with DSTM12x1 plug

2023-03-08T13:15:40+01:00

GF-7039

Resistance thermometer Installation sensor for acids and bases

2023-03-08T13:15:44+01:00

GF-7040

Resistance thermometer with bayonet lock and immersion sleeve

2023-03-08T13:21:50+01:00

GF-7043

Resistance thermometer Melt- & mass temperature

2023-03-08T13:21:54+01:00

GF-7044

Resistance thermometer Surface sensor non-contact

2023-03-08T13:21:57+01:00

GF-7045

Resistance thermometer Angled sensor with M8 screw

2023-03-08T13:22:00+01:00

GF-7048

Resistance thermometer Plunge-in sensor with handle

2023-03-08T13:22:06+01:00

GF-8000

Resistance thermometer Screw in sensor with connection head

2023-03-08T13:22:09+01:00

GF-8001

Resistance thermometer Screw in sensor with connection head, graduated

Resistance thermometer acc. to DIN 60751

  • Pt50 / Pt100 / Pt500 / Pt1000

  • 2- / 3- / 4- / wire circuit

  • Vibration and shake resistant design

  • Temperature range up to +600°C
  • High quality copper and nickel cable
2023-03-08T13:30:47+01:00

GF-7110

Thermocouple with bayonet lock, immersion sleeve and T-piece

2023-03-08T13:30:56+01:00

GF-7121

Resistance thermometer Bayonet and angled cable outlet

2023-03-08T13:31:02+01:00

GF-7122

Thermocouple Surface sensor with pipe clamp fixing

2023-03-08T13:31:08+01:00

GF-7124

Thermocouple Cable sensor straight protection tube

2023-03-08T13:31:11+01:00

GF-7126

Thermocouple Angled sensor with compression fitting

2023-03-08T13:31:56+01:00

GF-7131

Resistance thermometer Surface sensor with brass - segment

2023-03-08T13:31:59+01:00

GF-7131/MS

Resistance thermometer Surface sensor with brass retaining plate

2023-03-08T13:32:04+01:00

GF-7132

Resistance thermometer Screw in sensor perforated or outcutted

2023-03-08T13:32:10+01:00

GF-7133/R

Resistance thermometer Room temperature in wet rooms & containers

2023-03-08T13:32:13+01:00

GF-7138

Resistance thermometer Screw in sensor straight or angled

2023-03-08T13:45:14+01:00

GF-7138/S

Resistance thermometer Screw in sensor with DSTM12x1 plug

2023-03-08T13:45:15+01:00

GF-7139

Resistance thermometer Installation sensor for acids and bases

2023-03-08T13:45:18+01:00

GF-7140

Resistance thermometer with bayonet lock and immersion sleeve

2023-03-08T13:45:20+01:00

GF-7143

Resistance thermometer Melt- & mass temperature

2023-03-08T13:45:27+01:00

GF-7144

Resistance thermometer Surface sensor non-contact

2023-03-08T13:45:29+01:00

GF-7145

Resistance thermometer Angled sensor with M8 screw

2023-03-08T13:45:31+01:00

GF-7148

Resistance thermometer Plunge-in sensor with handle

2023-03-08T13:45:37+01:00

GF-8100

Resistance thermometer Screw in sensor with connection head

2023-03-08T13:45:42+01:00

GF-8101

Resistance thermometer Screw in sensor with connection head, graduated

2023-03-08T13:45:43+01:00

GF-8102

Resistance thermometer High temperature screw in sensor 15mm

2023-03-08T13:45:48+01:00

GF-8103

Resistance thermometer High temperature screw in sensor 22mm

2023-03-08T13:46:03+01:00

GF-8104

Resistance thermometer Connection head sensor with weld-in protection sleeve

2023-03-08T13:46:05+01:00

GF-8105

Resistance thermometer High temperature angled sensor 22mm

2023-03-08T13:46:22+01:00

GF-8106

Resistance thermometer High temperature ceramic sensor 15mm

2023-03-08T13:46:41+01:00

GF-8107

Resistance thermometer High temperature ceramic sensor 22mm

We solve countless and highly complex tasks every day. Maybe yours soon?

Marion Hupperich

Managing Director Gräff GmbH

We solve countless and highly complex tasks every day. Maybe yours soon?

Marion Hupperich

Managing Director Gräff GmbH

Contact us

Thermocouples and resistance thermometers

Solutions for all industries.

We offer more than 5,000 different thermocouples and resistance thermometers. With more than 20,000 possible variations. And yet, we are continuously developing new, tailored solutions – for every challenge, for every industry.

  • Plastics industry

  • Food industry

  • Raw material refining industry

  • Metalworking

  • Furnace construction

  • Waste management

  • Automotive industry

  • Plant and mechanical engineering

  • Construction industry

  • Glass industry

  • Textile industry

You are looking for solutions.
We have answers.

We are there for you if you have questions, specific requirements or challenges that require special and custom-made solutions. We are happy to personally assist you with our competences. You are welcome to contact us anytime.

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