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EWS-WALL-MNT-ALL
Environmental Wall-Mount Sensors and Transmitters
Models In Stock
- Thermocouple, RTD or Thermistor Sensor Models
- Temperature, Temperature / Humidity and Barometric Pressure Transmitter Models
- Low-Cost Miniature Design
- Stylish Design Blends in Well with Your Office, Computer Room or Laboratory Décor
EWS-WALL-MNT-ALL
From
C$
134.94
Models In Stock

Product Overview
- Enclosure Material ABS
- Height 45 mm
- Length 79 mm
- Mounting Wall Mount
- Width 54 mm
OMEGA’s low-cost environmental wall mount sensors keep your office, computer room, or laboratory looking great. They are compatible with most process meters, controllers, recorders, data loggers, and data acquisition systems. Thermocouple, RTD, and thermistor models come with 1 m (40") leads. Temperature, temperature/humidity, and pressure units come with industry-standard, user-selectable 4 to 20 mA or 1 to 5 Vdc output.
Note: The EWS Series is for indoor applications only. They are not designed to be exposed to rain, snow or other extreme weather conditions.
PDFs & Manuals
Show Ratings & Reviews
Rated 5 out of
5
by
Derek B from
As expected!
Delivered and working as expected. Installation was smooth with no issues.
Date published: 2025-01-13
Rated 5 out of
5
by
Anonymous from
Best value for space temperature monitoring
A clean, simple & cost-effective wall mount sensor
Date published: 2022-11-15
Rated 2 out of
5
by
bob1 from
Not even close
I've installed one of these so far. It read 84 F. I checked it with two accurate (expensive) and they both read 71 F. Apparently I need to calibrate it.
I hope the rest are a little closer.
Date published: 2016-03-18
Rated 1 out of
5
by
IBS Guy from
Troublesome Product
Constantly read high. Was told by customer support that the unit could handle 18 volts DC maximum despite the fact that the documentation said 24. Changed to a 15 volt supply and still had the same problem. Used a heat gun on the unit and noticed the board had a 90° hot spot on it. Maybe the RTD was picking some of that up. In the end I went with something else.
Date published: 2016-03-14
We have a unit that is consistently reading low by more than 10 degrees. Is there a way to calibrate the sensor?
Thank you for connecting with Omega.
There is an adjustment labeled “P4” on the board for calibration at ambient.
If you still have an issue after the adjustment try using a power supply with an output voltage between 8 and 18 volt dc.
Date published: 2024-01-25
The EWS-TX has a note "Not recommended for fast moving air applications." What is considered acceptably low air flow and what is the effect on accuracy as air flow is increased? Does the direction of the air flow relative to the case matter?
Thank you for the inquiry. The EWS-TX is designed for office environment. Not for mounting inside air ducts where fast moving air and possible vibration could damage components. For a sensor designed for air duct or similar application please email request to TEMP@OMEGA.COM.
Best regards,
OMEGA
Date published: 2022-12-30
Is the Omega Temperature Transmitter EWS-TX UL listed?
Thank you for your inquiry! The EWS-TX is not UL listed
Date published: 2021-04-13
Does the EWS-RH come with the temperature and humidity sensors included? And also, do they have separate 4-20 mA analog outputs? (one for temperature and one for humidity).
Thank you for your inquiry! Yes, the EWS-RH has internal temperature and relative humidity sensors. They also have separate 4-20mA outputs. Please find the EWS-RH Manual in the Quick Links tab and look to page 4 for wiring examples.
Application Engineer CK
Date published: 2021-05-31