Thermocouples
K-Type Surface Thermocouple
K-type surface thermocouple with adhesive pad for flat surfaces.
From $12.00
FACTORY-DIRECT TEMPERATURE SENSING
Measure every degree, down to ±0.1 °C
We build RTD probes, thermocouples, infrared pyrometers and data loggers in our own ISO 9001 plant — then calibrate every unit before it leaves the door.
- ±0.1 °CBest accuracy
- 32Countries served
- 3 yrWarranty
● IP67 sealed
±0.1 °C accuracy
In stock · ships in 48 h
Certified & tested
ISO 9001CERoHSATEX / IECExIEC 60751
Shop by sensor type
Every category is stocked, calibrated and ready to ship — or configured to your drawing.
01 · 10 products
RTD & Thermistor
## Pt100 and Pt1000 sensors for accurate, repeatable temperature measurement RTD sensors use a platinum resistance element whose resistance rises predictably with temperature. Compared with thermocouples, they offer higher accuracy and better stability at low and medium temperatures, which makes them the default choice for HVAC, food processing, pharmaceutical, water treatment and laboratory equipment. This category covers our Pt100 and Pt1000 range: thin-film RTD elements, stainless-steel probe assemblies, surface and magnetic sensors, threaded and screw-in probes, submersible sensors and high-precision versions. Elements are available in Class A, Class B and tighter tolerances, with 2-, 3- or 4-wire connections depending on cable length and accuracy requirements. ## Choosing the right RTD - **Element:** Pt100 for general industrial use; Pt1000 when higher resistance and lower cable sensitivity are useful. - **Accuracy:** Class A for critical measurement, Class B for general purpose; 1/3 DIN or AA on request. - **Wiring:** 2-wire for short runs, 3-wire for industrial probes, 4-wire for laboratory and high-accuracy work. - **Mechanical:** probe diameter, length, thread (M12, G1/4, G1/2, NPT), sheath material and cable type. - **Environment:** waterproof, submersible, high-temperature or hygienic versions. ## Typical applications Chillers, boilers, heat pumps, air-handling units, water tanks, food and dairy lines, pharmaceutical skids, semiconductor equipment and calibration benches. ## Quality and ordering Every sensor is built in our ISO 9001 factory and can be supplied with a calibration certificate. Stock items ship within 48 hours; custom lengths, threads, connectors and cable materials are quoted on request. Tell us the temperature range, accuracy class, thread and lead length, and we will recommend the closest standard model or a custom build.
02 · 8 productsThermocouples
## Thermocouples for fast response and high-temperature measurement Thermocouples generate a small voltage when two dissimilar metals meet at a measuring junction. They are rugged, fast-responding and suitable for much higher temperatures than most RTDs, which makes them the standard choice for kilns, furnaces, ovens, exhaust systems and plastics processing. Our range includes Type K, J, T and E thermocouples in several constructions: surface and washer probes for flat surfaces, stainless-steel probe assemblies, bendable armored probes, screw-in and spring-loaded sensors, and thermocouple wire for OEM assembly. Sheath materials include stainless steel, Inconel 600 and ceramic insulators, with standard or custom lengths. ## Choosing the right thermocouple - **Type:** Type K is the general-purpose choice; Type J is common in older industrial equipment; Type T suits low-temperature and cryogenic work; Type E offers a higher output. - **Junction:** grounded for fast response, ungrounded for electrical isolation, exposed for the fastest response in clean environments. - **Construction:** surface lug, threaded probe, armored probe, spring-loaded screw-in or bare wire. - **Process connection:** M6, M8, M12, G1/4, G1/2, NPT or custom. - **Lead:** 0.5–3 m standard, with PTFE, fiberglass or silicone insulation and optional connectors. ## Typical applications Kilns and heat-treatment furnaces, industrial ovens, plastics extruders, packaging machines, engine and exhaust testing, HVAC equipment, food processing and laboratory furnaces. ## Quality and ordering Sensors are manufactured in our ISO 9001 factory and can be supplied with calibration certificates and material traceability. Stock items ship within 48 hours; custom lengths, threads, junctions and connectors are quoted on request. Send us the temperature range, atmosphere, thread and lead length, and we will recommend the right type and construction.
03 · 5 productsTransmitters & Controllers
## Temperature transmitters and controllers for process and OEM use A temperature transmitter converts a Pt100 or thermocouple signal into a stable industrial output such as 4–20 mA, 0–10 V or RS485. This lets the sensor run over long cables, interface with a PLC or DCS, and be configured for the required range without changing the sensor itself. Our range includes head-mounted transmitters for mounting in a connection head, DIN-rail transmitters for control cabinets, compact transmitter modules for OEM equipment, and PID temperature controllers with display and relay outputs. Inputs cover Pt100, Pt1000 and common thermocouple types; output options include 4–20 mA, 0–5 V, 0–10 V and RS485 Modbus. ## Choosing the right transmitter - **Mounting:** head-mounted, DIN-rail, panel-mount or potted module. - **Input:** Pt100, Pt1000, thermocouple or universal input. - **Output:** 4–20 mA 2-wire, 0–10 V 3-wire or RS485 Modbus. - **Display:** no display, local LCD/LED, or controller with keys and relay outputs. - **Environment:** enclosure, terminal type, isolation and supply voltage. ## Typical applications Process skids, HVAC plant, water treatment, food and beverage lines, packaging machines, plastics machinery, furnace control panels and OEM equipment. ## Quality and ordering Every unit is tested in our ISO 9001 factory and can be supplied with a calibration certificate. Stock items ship within 48 hours; custom ranges, input types and outputs are quoted on request. Send us your sensor type, required output, supply voltage and quantity, and we will recommend the closest standard model.
04 · 5 productsData Loggers
## Paperless recorders and data loggers for temperature and process data Paperless recorders replace chart paper with digital storage, making it easier to review trends, export data and keep a traceable record for quality and maintenance. Our range covers compact panel recorders, touch-screen models, multi-channel scanners and industrial recorders for continuous process monitoring. Inputs can include thermocouples, Pt100 RTDs, voltage and current signals, depending on the model. Data can be viewed on the local display or exported via USB / RS485 for reporting and analysis. ## Choosing the right recorder - **Channels:** 1–4 channels for small skids, 8–32 channels for multi-point monitoring. - **Input type:** thermocouple, RTD, 4–20 mA, 0–10 V or mixed. - **Display:** basic LCD, touch screen or high-resolution trend display. - **Storage and export:** internal memory, USB export or RS485 communication. - **Environment:** panel-mount, benchtop or industrial enclosure. ## Typical applications Furnace and kiln monitoring, heat-treatment validation, pharmaceutical and food process records, HVAC commissioning, environmental chambers, boiler and chiller trending, and laboratory test stands. ## Quality and ordering Recorders are supplied through our ISO 9001 quality system and can be configured for your input types and channel count. Stock items ship within 48 hours; custom configurations and calibration are quoted on request. Tell us the number of channels, input types and export format you need.
05 · 7 productsPressure Transmitters
## Pressure transmitters for industrial and hygienic processes Our pressure transmitters use diffused-silicon sensing elements in stainless-steel housings to provide a stable 4–20 mA, 0–10 V or RS485 output. The range covers compact OEM transmitters, sanitary tri-clamp versions for food and pharmaceutical lines, high-temperature models, units with local LED displays and hazardous-area designs. Pressure ranges span from low differential and gauge ranges to high-pressure industrial models. Common process connections include G1/4, G1/2, 1/4 NPT, 1/2 NPT and tri-clamp; electrical connections include cable outlets and DIN-style plugs. ## Choosing the right pressure transmitter - **Pressure range:** gauge, absolute or compound; choose a range that keeps normal operation in the middle of the span. - **Output:** 4–20 mA 2-wire for PLC/DCS, 0–10 V for OEM controllers, RS485 Modbus for digital systems. - **Process connection:** G1/4, G1/2, NPT, tri-clamp or custom. - **Wetted material:** 316L stainless steel standard; other materials on request. - **Environment:** hygienic, high-temperature, marine or hazardous-area design. - **Display:** local LED/LCD for setup and troubleshooting. ## Typical applications Water and wastewater, HVAC plant, pumps and compressors, food and dairy processing, pharmaceutical skids, marine systems, hydraulic power units and industrial machinery. ## Certification note Hazardous-area certification depends on the destination market. Our pressure transmitters are available with CNEx certification for China; for US, EU, Australian or Middle East projects, contact us before ordering so we can confirm the correct certification route. ## Quality and ordering Units are built in our ISO 9001 factory and can be supplied with calibration certificates. Stock items ship within 48 hours; custom ranges, connections and outputs are quoted on request. Send us the range, process connection, output and media so we can recommend the right model.
Best sellers
The parts our customers reorder most often.
Thermocouples
K-Type Surface Thermocouple Probe
Cold-pressed lug and pierced hole for fast, repeatable surface temperature measurement
From $14.00
RTD & Thermistor
Magnetic Pt100 Temperature Sensor
Magnetic Pt100 temperature sensor with strong magnet for steel surfaces.
From $22.00
Pressure Transmitters
Sanitary Pressure Transmitter
Tri-clamp flat diaphragm, 316L body and hygienic process connection
From $290.00
Why engineers specify us
We are the factory, not a middleman — so specifications, lead time and price all stay under one roof.
Calibrated & traceable
Every probe ships with a 3-point calibration certificate traceable to national standards.
Built for harsh plants
316L / Inconel sheaths, IP67 sealing and 4 kV isolation for vibration, steam and washdown.
Ships in 48 hours
Over 40,000 sensors in stock. Custom lengths and threads assembled in 5–7 working days.
Where our sensors work
From clean rooms to blast furnaces.
01
HVAC & building
Duct, chilled-water and room sensors with BMS-ready outputs.
02
Food & pharma
Sanitary RTDs, 3-A compliant fittings and hygienic design.
03
Industrial process
High-temperature thermocouples and transmitters for OEM skids.
04
Energy & utilities
Immersion probes for steam, boilers and heat meters.
What customers say
“We replaced three suppliers with ThermoSense. Lead time went from six weeks to four days and the calibration paperwork is always complete.”
“The sanitary RTD matched our existing tri-clamp geometry exactly. Zero re-engineering, zero downtime.”
Questions, answered
Do you have a minimum order quantity?
No MOQ for stock items — one probe is fine. Custom lengths, threads and connectors start at 50 pieces.
Can you calibrate to my temperature range?
Yes. Tell us the points you need (0 / 100 / 200 °C, for example) and we calibrate and label each unit to that range — free above 10 pieces.
How fast can you ship?
Stock items leave our warehouse within 48 hours. Custom probes take 5–7 working days. DHL / FedEx express is 3–6 working days door to door.
Do you provide certificates and drawings?
Every order includes a 3-point calibration certificate and material traceability. 2D/3D drawings and 3-A / ATEX documents are available on request.
Tell us your application — we will spec the sensor.
Send the temperature range, medium, thread and cable length. An engineer replies within one working day with a drawing and a price.