TOP 5 temperature transmitters

We’re up, yup yup, for another TOP 5! We did our first TOP 5 on fancy Coriolis flow meters, and we got some good traffic and comments on our social media. Some peeps got a little mixed up, confusing our opinion piece for research, but that happens. We roll with it.

Today we’ll list the TOP 5 temperature transmitters! Looking at prime solutions for your daily process here. The selections on this list provide a bit more than those transmitters that look like cookies, you know? These have cool displays, more than one input, fancy features, and enough oomph to work in hazardous areas. Of course, depending on where you live, some local vendors may have stronger brands than others. Therefore our list covers international companies, so you can find what you need almost anywhere on the globe.

And now, in no particular order, our TOP 5 temp devices!

Yokogawa YTA320

We consider Yokogawa a strong player in this market. You’ll find its temperature transmitters in various segments. The YTA320 will connect to the most common temperature sensors like RTDs, thermocouples, and millivolt sensors. It offers great integration too, with HART, FOUNDATION Fieldbus, and BRAIN. Nobody has that last one as far as I know. Of course, the 21st century and proprietary protocol don’t play well together, but at least you have the option.

Temperature transmitters
Courtesy of Yokogawa

THE YTA320 also allows for a sensor backup. If your primary sensor fails, then your secondary sensor will come online and the transmitter will send you a diagnostic. Niiiiice. And the dual input can give you a temperature average between two points or a differential temperature. Even better.

The YTA320 comes SIL 2 certified, and if you have two, then you can have SIL 3. Always great to see safety as a top priority! For more data on the YTA320, have a look at the official site.

Endress+Hauser iTEMP TMT162

Endress+Hauser makes nice temperature transmitters as well. Unfortunately, if you want wireless, a booming market now, then this one falls out of the game. Still, the TMT162 works great for harsh environments, with its enclosed construction and thorough certification.

temperature transmitters
Courtesy of Endress+Hauser

It comes with dual input as well, where you can connect RTDs, thermocouples, and voltage signals. As for seamless integration, you have analog, HART, FOUNDATION Fieldbus and PROFIBUS PA, which gives you a good range.

With the dual input you have sensor backup and mathematical functions, which sound great, but it’s only average and differential. It should have more features. We’ll do a full product review soon, once I stop getting lost on their website.

As usual, my favorite highlight of this device has nothing to do with accuracy or performance. It has a really fancy display, and I like the colors and the bar graphs. If you want more on the TMT162, check out E+H’s page.

Emerson Rosemount 3144P

Yep, Emerson shows up in most of the lists. The 3144P is a relevant transmitter for many applications. I remember presenting the features of this device years ago at an industry shindig in Brazil, and most of its features remain just as straightforward.

Temperature Transmitters
Courtesy of Emerson Automation Solutions

Just like most of the devices on this list, the 3144P brings dual input and a sensor backup called HOT backup. Yeah, I already told you how this feature works up there, so let’s skip to the next bit.

It also supports traditional and common sensors like RTDs, thermocouples, and millivolts. We can’t call the display fancy, but it gives the process data clearly, with bar graphs for visual understanding.

It provides certification for using the 3144P in hazardous areas and is also SIL2/SIL3 certified. Want more info? Then get it right here.

Honeywell Smartline STT850

Honeywell puts out a good temperature transmitter but a bad website. I had trouble finding the info I needed, just like with E+H. Come on, y’all! Anyway, the STT850 provides dual input and seamless integration, offering protocols like HART, FOUNDATION Fieldbus and Profibus PA.

Temperature Transmitters
Courtesy of Honeywell

At this point, you’re probably thinking, “RTDs, thermocouples, yadda yadda.” Yeah, pretty much. And of course, hazardous area certification and SIL2/SIL3 certified. It’s like you’re reading my mind. Spooky.

Simple display, with trending graphs and bar graphs, but they look pretty good for all the simplicity. Honeywell has more dirt on the device if you want it.


Last but not least, we have the gang from SIEMENS! The SITRANS TF has a few more limitations than the others but offers good cost benefits.

Here, you can read process variables from RTDs, thermocouples, resistance, and millivolts! No surprise there, right? Took me a while to figure that out, though. The documents have too much information on one page, making me crazy. We’ll save that rant for the product review.

Temperature transmitters
Courtesy of Siemens

You got integration for the most common protocols, like analog, HART, FOUNDATION Fieldbus and PROFIBUS. It also brings hazardous area certification and SIL2/3. Nothing new here, either, except one fun little bit – you can choose between intrinsically safe or explosion-proof models. Maybe I don’t work in an explosion-prone area, but I still want the explosion-proof one. Read all about the SITRANS TF and others temperature transmitters!

Agree? Disagree? Feel free to share your experiences or offer your TOP 5 in the comments.

For other TOP 5 lists, check these out:

Recommended articles

The definitive guide to pressure transmitters

#pAutomator Analytics Articles Asset Management Bunker Metering System Calibration Chemical & Petrochemical Control System Data Acquisition Energy Monitoring Events events Featured Field Network Flow Flow Metering System Food & Beverage Industries Industry 4.0 Internet of things Inventory Management Level Life sciences Measurements Oil & Gas Pressure Primaries & Metals Product Review Q&A Services Signal Converters and Isolators Solutions System Integration Temperature Uncategorized Valves Vibration Videos Visaya Startup Blog Water & Wastewater Wireless