Skip to search Skip to main content Skip to navigation

Call us at 1-888-826-6342

We noticed you are from . Visit your local site for regional offers and live support.

Glue-On RTD Surface Sensors with Coin Style SS Housing

Encapsulated RTD Sensors


Item# RTD-809

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$213.46
5-9 C$202.79
10-24 C$198.52
25-49 C$189.98
50-99 C$185.71
100+ C$181.44

In stock

Lead Time (If not in stock): 4 weeks
Encapsulated RTD Sensors RTD-809 RTD-809
  • Flat Disc Shape is Ideal for Surface Temperature Measurements
  • Bonds to Surfaces for Measuring Heat Loss or Operating Temperatures
  • Sensor Contains a High-Accuracy, 100 Ohm, Class “A” DIN Platinum Element. 1 meter (40') or PFA Insulated & Jacketed Cable and 3-Pin Miniature Connector
  • Temperature Coefficient (Alpha) = .00385 ohm/ohm/°C

RTD-809 Model Options

View all models

Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Process Temperature Range
Sensor Application
Nominal Resistance
Number Of Wires
Cable Insulation
Termination Connection Type
Cable Length
Mounting Style
Maximum Temperature Measurement
Minimum Temperature Measurement


This flat "disc" encapsulated 100 ohm Class A DIN platinum RTD sensor is ideal for surface temperature measurements such as heat loss or compressor efficiency applications. The sensing end can be cemented into place for permanent mounting or can be adheredusing a single-side tape.

When combined with Omega's extension cables, transmitters, controllers, dataloggers, thermometers or temperature displays, these sensors become the heart of a complete temperature control and monitoring system.
loading all models
loading all reviews
Rated 4 out of 5 by from Great sensors They are great sensors. They act as you would expect a pt100 to act, they're unobtrusive, and so far have been reliable. I use wide zipties to hold them in position while the epoxy cures over the day. However I have no need for the connectors. A connector like that is asking for a failed connection in the environments I work in. I would prefer no connector or have an M12 connector directly attached to the puck. The insulation could also be thicker but that seems standard for many of these sensors with wires from Omega.
Date published: 2019-02-16
  • y_2024, m_7, d_12, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_CA, sid_RTD-809, prod, sort_[SortEntry(order=HELPFULNESS, direction=DESCENDING), SortEntry(order=POSITIVE_FEEDBACK, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 44ms
loading all QA

What is the size of the sensor disk?

Asked by: bmack92
Thank you for connecting with Omega! The sensor disc is: 11 mm (7⁄16") diameter, 3 mm (1⁄8") thick sensor for surface mounting and can be cemented into place for permanent mounting or fixed using adhesive tape. Let us know if you need any further assistance.
Answered by: Jane
Date published: 2019-05-08

After this sensor is attached to a surface, how can this be calibrated?

Asked by: TCW6
Thank you for your inquiry. We believe the best assistance would come from speaking to us directly at 888-826-6342 ask for the Temperature Department Mon. – Fri. (HOURS 8:30AM - 5:30PM EST).
Answered by: Application Engineer CB
Date published: 2023-05-02
  • y_2024, m_7, d_12, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_CA, sid_RTD-809, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 63ms

Related Categories

Save Configuration