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Magnetic Mount Thermocouples for Ferrous Metal Surfaces

Magnetic Mount Thermocouple Probes


Item# 88401E

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 C$350.38
10-24 C$332.86
25-99 C$315.34
100-499 C$297.82
500-999 C$280.30
1000+ C$262.79

In stock

Lead Time (If not in stock): 5 weeks
Magnetic Mount Thermocouple Probes 88401E 88401E
  • Magnetic Mounts Provide Quick Placement for Contact Temperature Measurements on Pipes, Ducts, etc.
  • Model 88401 (left photo) Measures to 250°C (480°F)
  • Model 88402 (right photo) Measures to 400°C (750°F)
  • Relatively Small Size Allows Use in Tight Spaces

88401E Model Options

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Thermocouple Type
Process Temperature Range
Cable Insulation
Color Code Standard
Sensor Application
Cable Length
Termination Connection Type

Magnetized probes, suitable for long term contact pressure. The 88401 uses PFA insulated lead wire and is rated to a max. surface temperature of 250°C (480°F). The 88402 uses "GG" fiberglass insulated lead wire and is rated to a max. service temperature of 400°C (750°F). Both sensors are supplied with an SMPW connector and TAS adaptor. K Calibration uses CHROMEGA™-ALOMEGA™ metals. E Calibration uses CHROMEGA™- Constantan metals.
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Rated 5 out of 5 by from Amazing Product This product is a must have for any process engineer in the plastics injection molding field. I have purchased one of these magnetic thermocouples for all 3 companies that I have been a part of. It easily connects to a pyrometer, and is much more reliable for a accurate steel temperature reading than the spring type surface temperature thermocouples. The product is superior in accuracy because of the magnetic pull being constant vs a person pushing against the steel surface with a spring type thermopcouple.
Date published: 2016-03-21
Rated 5 out of 5 by from Flat Stanley VLE Well, it's not Stanley but the flat ribbon thermocouple is excellent under heating tape. The application is temperature control in a 100 ml glass boiler of a vapor liquid equilibrium VLE, with a second ribbon thermocouple monitoring for failsafe shutdown.
Date published: 2017-07-21
Rated 5 out of 5 by from great product We absolutely love these probes. The head of the probe is about 1 inch by 1/2 inch and the magnets are extremely strong no problem staying attached even through thick industrial finished pipes and machine housings. rapid response time like all omega probes.
Date published: 2022-06-01
Rated 5 out of 5 by from Great product! This is the best magnetic thermocouple on the market! I have tried a couple of others that have a less than desirable magnetic force.
Date published: 2022-01-27
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data sheet shows need 10 seconds to read the full surface temperature, how about real time temperature logging? What is the response time?

Asked by: seraph3
Hi Seraph3 Thank you for the inquiry. Response time of the instrument would add to the response time of the sensor. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-05-15

Do you have a magnetic mount thermocouple rated for 1000 deg F?

Asked by: Derick Kekona
Thank you for your inquiry Derick Kekona. Unfortunately, we do not offer a magnetic mount thermocouple rated for 1000 F. The maximum temperature for the magnetic mount thermocouples is 482 F.
Answered by: Application Engineer MC
Date published: 2021-03-02

Probe 88401K. What is its accuracy in the range 150C-200C?

Asked by: Leon
Thank you for your inquiry Leon. The accuracy on this thermocouple for the full 0 to 250 C range is +/- 1.1°C or 0.4% whichever is greater.
Answered by: Application Engineer SP
Date published: 2021-11-04

When I purchase the Thin Leaf-Type Thermocouples, does it comes with the calibration certificate? or the calibration must be paid separately and what is the cost? thanks, Huy Le

Asked by: Anonymous
Thank you for your inquiry Anonymous. The thin leaf-type thermocouples do not come with calibration. Please send a request for pricing for the probe and calibration at
Answered by: Application Engineer MC
Date published: 2022-09-22

Can these be submerged in a liquid at 400C?

Asked by: TranscatFrank
Thank you for your inquiry! Unfortunately, these probes are not intended for liquid applications and should not be submerged
Answered by: Application Engineer JM
Date published: 2021-04-27
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Magnetic Mount Thermocouple Probes
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