text.skipToContent text.skipToNavigation

Air Temperature Sensor for Indoor or Outdoor Use

Air Temperature Sensor for Indoor and Outdoor Use


Item# EWSA-PT100-TX-CAL-3

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $389.33
10-24 $369.86
25-49 $362.08
50-99 $346.50
100-199 $338.72
200+ $330.93

In stock

Lead Time ( If not in Stock): 2 weeks

Air Temperature Sensor for Indoor and Outdoor Use EWSA-PT100-TX-CAL-3 EWSA-PT100-TX-CAL-3
  • Designed for Indoor and Outdoor Use
  • Screw Terminals for 4-Wire Pt100 Connection
  • Optional Built in 4 to 20 mA Transmitter
  • Rugged Sensor and Protection Tube Design
  • Fitted with M20 Cable Gland for Electrical Connection

Edit Options

View all models

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
Process Connection Size
Nominal Resistance
Number of Wires
Probe Diameter
Termination Connection Type

Product Specs


OMEGA’s rugged air temperature sensors offer the perfect solution for temperature monitoring outdoors or in demanding environments.
A 6 mm–diameter sheathed RTD probe is housed in the center of a 12.7 mm (0.5") outer protection tube which is drilled to improve airflow around the sensor. A 4-terminal connector block or 4 to 20 mA transmitter are housed in a tough aluminum alloy enclosure rated to NEMA 4X (IP65).
A cable gland is fitted on the opposite side of the enclosure to the sensor, suitable for cables from 2.5 to 6.5 mm (0.098 to 0.25") diameter.

    Box: 80 W x 75 H x 58 mm D (3 x 2.9 x 2.3")
    Sensor: 75 mm long x 12.7 mm OD (2.9 x 0.5")
Cable Entry: M20 Nylon gland for 2.5 to 6.5 mm (0.098 x 0.25") OD cable
Sensor Type: Thin film Pt100 class A 4 wire
Ambient Temperature Range: -50 to 100°C (-58 to 212°F)
Electrical Connection: Screw terminal block
Ambient Temperature Range: -40 to 85°C (-40 to 185°F) at 10 to 90% RH non condensing
Standard Transmitter Scaling: 4 mA -25°C (-13°F), 20 mA at 75°C (167ºF)
Electrical Connection: Screw terminals, 2-wire
Power Supply: 10 to 30 Vdc, loop powered
Maximum Output Load: [(V supply-10)/20] kΩ eg 700Ω @ 24V

  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getReviews, 1ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

What is the sampling frequency for this sensor? Is it capable of recording wind speed and direction values once ever second? (1Hz)

Asked by: Daniel18
Hi Daniel18 Thank you for the inquiry. This unit provides temperature indication via analog output only. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-07-06

EWSA-PT100-TX for this which cable is suitable??

Asked by: Narendra
Hi Narendra, Thank you for the inquiry. Cable rated for low voltage process signals similar to our TX2-100 Specs https://assets.omega.com/spec/PX_WIRE.pdf Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2020-09-24

Will there be any RoHS compliance certificate for EWSA-PT100-TX published? How long should I expect to wait for the certification to be made public?

Asked by: Alex M
Thank you for your inquiry. Please send your request to temp@omega.com
Answered by: Application Engineer JB
Date published: 2020-04-03

Hello, I am looking at the EWSA-PT1000, and it says optional built in 4-20ma transmitter. What part number(s) do I have to give my supplier to get this and the transmitter?

Asked by: Cmrch
Hi Cmrch, Thank you for the inquiry. The transmitter is available for the EWSA-PT100 only. Part# EWSA-PT100-TX. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-06-08

EWSE-PT100 VS EWSA-PT100 Disregarding any spec sheets for the TR option: Can we wire the new EWSA-PT100 EXACTLY the same as we wire the now obsolete EWSE-PT100? Was the old EWSE-PT100 a 4-20 output and what output is the EWSA?

Asked by: Anonymous
Thank you for contacting Omega Engineering on your EWSA-PT100 question. Please see below product manuals for the older discontinued EWSE-PT100 series and the new replacement EWSA-PT100 series. As you can see the electrical connections are the same for the EWSE-PT100 vs EWSA-PT100 RTD type output and the EWSE-PT100-TX vs EWSA-PT100-TX 4 to 20 mA type output. EWSE-PT100 user manual including the 4 to 20 mA transmitter model EWSE-PT100-TX; https://assets.omega.com/manuals/EWSE.pdf EWSA-PT100 RTD type output; https://assets.omega.com/manuals/M5732.pdf EWSA-PT100-TX 4 to 20 mA type output; https://assets.omega.com/manuals/M4561.pdf
Answered by: Jane
Date published: 2019-06-17

Can you provide dimensions on this part so we can design mounting methods before purchase?

Asked by: Mohamed Ghori
Dimensions: Box: 80 W x 75 H x 58 mm D (3 x 2.9 x 2.3") Sensor: 75 mm long x 12.7 mm OD (2.9 x 0.5")
Answered by: Temperature
Date published: 2019-09-24
  • y_2021, m_7, d_26, h_19CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.18
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_6
  • loc_en_US, sid_EWSA-PT100-TX-CAL-3, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 46ms
  • CE Icon CE

Save Configuration