PRODUCT CATALOGUE 2026
72 pages of temperature measurement
Every series with dimensional drawing, technical data and the complete ordering key, plus thermowell forms, tolerance classes, materials and explosion protection. No sign-up, no form.
View catalogue (PDF, English) →Deutscher Katalog (PDF) →
Industry brochure Automotive & test bench: english · deutsch
Catalogue 13 MB each, brochure 3.5 MB · September 2026 · all downloads
Temperature measurement from Hanau — resistance thermometers, thermocouples and ATEX sensors
Manufacturer since 1970 — single units, replicas from samples, or series production.
GHI manufactures temperature sensors for industry: Pt100 and Pt1000 resistance thermometers to DIN EN 60751, thermocouples types K, N, J, L, E, T and noble-metal thermocouples S, R, B, plus intrinsically safe ATEX versions under our own certification. You specify diameter, insertion length, process connection, cable and connector — we build to your drawing, your sample or your description.
What do you want to measure with?
Resistance thermometers
Pt100 and Pt1000 to DIN EN 60751 — from measuring inserts and bendable sheathed sensors to thermowell assemblies with flange. Up to +600 °C.
Thermocouples
Types K, N, J, L, E, T and noble metal S, R, B — sheathed thermocouples from Ø 1.0 mm, immersion sensors with thermowell, ceramic up to +1,600 °C, thermocouple wires made to measure.
ATEX sensors
Intrinsically safe versions for zones 0 to 2 and 20 to 22 — under our own EU type-examination certificate, with no extra lead time.
What is your measuring task?
Six cases cover most enquiries. Each leads straight to the page with dimensional drawing, technical data and configurator.
“I measure in a pressurised pipeline.”
Thermowell thermometers to DIN 43772 — eleven designs for screwing in, welding in or with flange.
“It has to be thin and bendable.”
Sheathed sensors from Ø 1.0 mm, mineral-insulated, with cable, free ends or connector.
“The thermowell stays, the sensor is faulty.”
Spring-loaded, replaceable measuring insert, Ø 3.0 or 6.0 mm, also in ATEX.
“It gets hotter than 1,000 °C.”
Thermocouple with ceramic protection tube C610 or C799 for furnaces, melts and combustion chambers.
“The measuring point is in a hazardous area.”
Intrinsically safe versions for zones 0 to 2 and 20 to 22 — marking and parameters at a glance.
“All I have is the old sensor.”
Send us a sample or drawing — we rebuild it, including Schramm GmbH series.
ATEX and IECEx — under our own certification
The EU type-examination certificate is issued to GHI. We mark our products ourselves, issue the declaration of conformity ourselves and need no subcontractor for the Ex version — so it adds no extra lead time.
EPS 25 ATEX 1 060 X, Rev. 1 · IECEx EPS 25.0012X, Issue 1 · Cable sensors WKF: IBExU 10 ATEX 1062 X
Why GHI
In Hanau since 1970
Our own production, not trading. What we offer, we build ourselves.
To drawing or sample
Send us the old sensor — we rebuild it, even if it is decades old.
ATEX manufacturer
Own EU type-examination certificate, own marking, monitored Ex production.
Schramm series
Since January 2025 we have continued the temperature measurement business of Schramm GmbH.
More areas
Test benches and automotive
Sliding thermocouples for brake test benches and vehicle testing, special designs to drawing.
Components and accessories
Connection heads, thermowells, transmitters, cables and connectors.
Typical industries
Chemicals & petrochemicals
Pharma & biotechnology
Food & beverages
Plastics & extrusion
Energy, power plants & hydrogen
Furnaces, heat treatment, glass & foundry
Machinery & plant engineering
Automotive & test benches
HVAC, refrigeration & buildings
Pumps, gearboxes & turbines
Laboratory, measurement & testing
Semiconductors, vacuum & electronics
Our product series
A cross-section of our range. Each series has its own page with dimensional drawing, technical data, industries and configurator.
Form 2
WSK-2
Plug-in or weld-in, straight seamless tube. Immersion depth adjustable via the compression fitting.
Ø 9 – 14 mm
Form 2G
WEK-2G
Screw-in with extension neck — keeps the connection head away from the hot process.
G ½" to G 1", ½" NPT
Form 2F
WSK-2F
Flange connection on a straight tube — for vessels and pipelines with flanged nozzles.
Ø 9 – 14 mm
with cable
WML
Transition sleeve and temperature-resistant connecting cable — the standard version for measuring points without thermowell.
Ø 1.0 – 6.0 mm · stranded wires, LEMO or M12
with cable, ATEX
WML-EX
The same design with ATEX and IECEx approval for zones 0, 1 and 21.
Ø 3 / 6 mm · −50…+450 °C
Form 2
TSM-2
Plug-in or weld-in, straight seamless tube. Immersion depth adjustable via the compression fitting.
Ø 9 – 14 mm
Form 2G
TET-2G
Screw-in with extension neck — keeps the connection head away from the hot process.
G ½" to G 1", ½" NPT
with cable
TML
Transition sleeve and thermocouple or extension cable — the standard version, also as TML-EX for zones 0, 1 and 21.
Ø 0.5 – 6.0 mm · types K, N, J, S
All designs: Resistance thermometers →Thermocouples →ATEX sensors →
Please contact us
We are happy to help with questions about products, versions and delivery times.
Dennis Kühne
Phone: +49 6181 504 93 18
Mobile: +49 160 91437153
E-mail: info@ghi-gmbh.de
