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Bolt-On RTD Sensor with Aluminum Flag Housing

120 in Fiberglass leads, Hi Temp, #3, #4 hole


Article# RTD-831-120-MTP-HT

Remises de volume disponibles
Calendrier de remise sur volume
Quantité Prix unitaire
1-4 C$255.86
5-9 C$243.07
10-14 C$237.95
15-24 C$227.72
25-99 C$222.60
100+ C$217.48

En stock

Délai de livraison (si pas en stock): 3 semaines
120 in Fiberglass leads, Hi Temp, #3, #4 hole RTD-831-120-MTP-HT RTD-831-120-MTP-HT
  • Updated housing design for improved strain relief
  • Standard hole for #3 and #4 screw. Options available for #5, #6, #8 screw
  • Small aluminum housing allows for installation on most flat surfaces
  • Sensor can be bolted or cemented into place

RTD-831-120-MTP-HT Options de modèles

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Process Temperature Range
Nominal Resistance
Cable Insulation
Termination Connection Type
Cable Length
Additional features
Sensor Application
Number of Wires

Omega's RTD-831 series 3-wire RTD sensor features an improved barrel and flag design on the aluminum housing which gives improved durability. The flag is machined to accept a #3, #4, #5, #6, #8 screw for easy installation on flat surfaces by either being bolted or cemented onto the surface. This is available in 100 Ω or 1000 Ω Platinum RTD element and is available in a high temperature (-HT) version. Connection options available are miniature 3-pin connector (-MTP), standard 3-pin connector (-OTP), stripped ends (-SE), and spade lugs (-LUG). For other connector types, please contact Sales. Applications for this type of sensor include product performance testing climate control/HVAC monitoring and control of processes hot plate equipment, and process pipes.

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Rated 5 out of 5 by from Quality products We specify Omega in our products. This and other Omega components meet our expectations and reliability constantly
Date published: 2023-12-06
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The picture of this part and the drawing do not match. They are mirror images of each other. Can post pictures of the actual product? With the cable pointing to the left, I would like to know if the mounting hole is above or below the cylinder. Thanks

Asked by: DSMKS
Thank you for your inquiry. Please contact our Engineering Department at for more information.
Answered by: Application Engineer CB
Date published: 2023-08-21

Hello. Does the extended temperature range apply to the cable as well? Thanks

Asked by: Luna
Yes the cable is fiberglass insulation allowing exposure to 450C as well.
Answered by: ApplicationsEngineerANB
Date published: 2023-11-03

What is a typical response time of the RTD-831 series Pt100 Class A sensor?

Asked by: MNHS
Thank you for your inquiry. Please send this request to
Answered by: NorwalkAE_SP
Date published: 2024-06-14

What are the wire colors and connections for the RTD-831-SE sensor?

Asked by: Sechan Engineer
Thank you for your inquiry Sechan Engineer. The RTD-831-SE sensor has Red/Black/Black wires.
Answered by: Application Engineer SP
Date published: 2023-08-25

Is there a rating on the Electrical Isolation between the Aluminum housing and the lead wires?

Asked by: rjpdx
Thank you for your inquiry. The temperature range for the fiberglass insulation is -73 to 482 C.
Answered by: Application Engineer MC
Date published: 2023-12-18

For RTD-831-MTP-H170, what AWG are the leadwires?

Asked by: Jay L
Thank you for your inquiry. It uses 26 awg stranded wire.
Answered by: Application Engineer SP
Date published: 2023-07-26

Can RTD-831 series be used in Vacuum chamber like RTD-830 series? Thanks.

Asked by: Anonymous
Hi Anonymous, If used in vacuum there may be some outgassing from the epoxy used in construction; so we have no vacuum recommendation for this product; You would need to purchase and evaluate to see if would be acceptable. This has the same construction as the RTD-830. The new washer shape provides for stronger lead wire connection. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-11-01

Does this sensor is certified CSA or UL ?

Asked by: Anonymous
Unfortunately, the RTD-831 series is not CSA or UL rated. Omega does not sell any temperature sensor that is CSA or UL rated
Answered by: Application Engineer MC
Date published: 2024-07-08
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