Best Outdoor Temperature Sensor (2021)

Just thinking out of the box but have you considered adding the SmartWeather Station as a virtual device? It costs nothing and provides a lot of useful information (see screenshot below in the IDE).


Anyone has experience with Qubino temperature sensor?

You could have sensor outside and module installed inside of the wall

Sorry, but I’m gonna piggy-back on this.
I’m also trying to find an outdoor thermometer - Z-wave. I live in the US. Lows in my immediate area can reach single digits.
My problem is finding a sensor that meets my needs. I have no interest in one that requires a handler since I have no idea what that is. I’ve found 1-2 that are not good above 80% humidity for extended periods. Since my area can have humidity >80% for a day or two, I’m guessing that won’t work.
The sensitive strips seem close to what i want, but review ratings are around 3-3.5 which doesn’t give me much confidence.
Any suggestions on sensors that will work in my area will be appreciated.

BTW, is there a ST temperature sensor that will display the temp?

You mean on the device itself? There are some devices that are compatible with smartthings that display the temperature, but we need to know a few things first.

  1. this thread is about outdoor sensors, so are you asking about an outdoor sensor?

  2. what country are you in? The device selection does vary.

  3. do you have a smartthings/Aeotec hub?

  4. battery powered or mains powered or it doesn’t matter? Most mains powered temperature sensors can report more often. Battery powered temperature sensors are often limited to about once every 15 minutes in order to save battery life.

  5. local or cloud-based? There are several devices that work with smartthings that display temperature, but use a cloud to cloud integration.

  6. if outdoor, what are your typical weather variations over a year? There’s a big difference between Minnesota and Los Angeles as far as the durability required of the devices.

I’m interested in outdoor temp in the US. Typical temp range is -6 > 102F - not every yr. Have a ST hub and all devices currently connected are Z-wave.
Battery power, although if forced, I can use AC
Uncertain the difference between local and cloud. An alarm on a ST device can reach my phone 1500 miles away. I’d like to find a sensor that will display temps either on an android widget or stand-alone display.

Local: does not require an active internet connection, so if your Internet goes out, your routines still work

Cloud: computers run by smartthings or Amazon or Google or some other company that your devices talk to over the Internet. So you have to have an active Internet connection to reach “the cloud“.

The smartthings app itself always requires the Internet, even if your phone is on the same Wi-Fi as your hub. They didn’t have to design it that way, but they did. In contrast, for example, the Apple HomeKit app will work just fine when the Internet is out as long as your local Wi-Fi router is still functioning. But in either case, if you want to get information when you are away from home, not connected to your own Wi-Fi, then that requires cloud communications.

So with SmartThings, an android widget will require the cloud. A local device with a display might not, it just depends on the specific model.

As far as handlers, every device connected to your smartthings account is using a “device type handler“. That’s just code that lets your SmartThings account talk to the device.

SmartThings provides “stock handlers” for many devices. So when you open the smartthings app, tap the + in the upper right, choose add a device, find your specific device model and add it there, smartthings will use the stock handler.

However, the stock handlers don’t necessarily provide all of the features that the device is capable of. So sometimes community members will create a “custom device handler” Which lets you use more features of the device.

For example, when some multi button devices are added to smartthings using a generic stock handler, only the first button will work. To get access to the additional buttons, you need to use custom code.

On the original smartthings platform, you could add custom code to your account using a copy and paste method. You just copied someone else’s code and then pasted it into the web interface to your smartthings account. It was tedious, but pretty straightforward.

Under the new architecture which is currently being developed, it will be even easier. You will just follow a link that the code author gives you and then that will cause the custom code to get downloaded to your hub later that day. The new architecture is called “SmartThings edge“ and the new device type handlers, whether they are stock or custom, are called “edge drivers.“

So when you say you “don’t want to use a handler“ what you really mean is that you don’t want to have to use any custom code. Because all of your devices will always use a handler, it just might be one that gets automatically used when you add the device.

And that’s fine, the vast majority of smartthings customers don’t use any custom code. It does mean there will be some devices that other people can use and you can’t, but that choice is up to you.

Now that we’ve cleared up the Terminology…

I myself don’t know of any devices that meet your specifications for outdoor use. Hopefully someone else will.

These days, most of the outdoor sensors don’t have a display, because then they can be cheaper and manufacturers believe that most people will just use their phone if they want to check the reading while they are outdoors. :thinking:

As far as the temperature range, you should be able to find battery-operated sensors that can handle down to -4°F. That’s a limitation of the batteries. Most won’t be able to go all the way down to -6, they will just stop working around -4.

You make it sound as if handlers are just DLd and installed. If that’s the case, I have no problems with that.
I don’t subscribe to a cloud service, so I guess I can say ‘no’ to cloud.
I live far enough away from the nearest ‘official’ temp supplier my outside temp can be 7 degrees off to the downside and 4 degrees off from the upside from the local ‘official’ temp. Opening my phone,opening ST, scrolling to the temp sensor and opening it seems like a lot of steps to read a temp, thus, my search for a widget.
Guess I’ll re-read this thread and consider sensors needing handlers.

Here’s the community FAQ on adding custom handler’s for the original smartthings platform, the one that uses groovy. That’s the copy and paste method.

The examples shown will be from the older app version, but the concepts in the process described will still apply.

FAQ: An Overview of Using Custom Code in SmartThings (SmartThings Classic, Groovy Code)

Smartthings is right in the middle of transitioning to a new architecture. That will be Edge. For that one, yes, it’s just download. You don’t need to do anything more than that. But it’s still in beta, so some of the edge drivers will be glitchy right now.

The transition will probably be complete in a few months but no exact timeline has been given.

I’m confused by this statement. Smartthings itself is still primarily a cloud-based system. You can’t use the smartthings app without using the smartthings cloud. So if you already have a smartthings account set up, that’s a cloud service that you are subscribed to, even though there’s no monthly fee.

“Cloud“ just means functionality that you use the Internet to access.

If you are using smartthings, you are using the cloud, it just varies on how much you are using it for depending on your specific configuration. But again, just the smartthings app by itself requires the cloud.

Came into the forum today for an app issue (persistent “Network connection” pop-up), and when I got it fixed my dashboard reported my outdoor temperature sensor’s battery is low.

My first Sensative strip lasted just over a year, using the default settings. I need a reliable outdoor temperature sensor that works down well below freezing for specific automations that control a 5000W garage heater under very specific conditions, and was assured that the Strip would be just fine down to -40°. I contacted Sensative and they promptly sent a replacement, and I set it up with just temperature reporting and minimal logging in order to maximize battery life. It’s reporting 10% battery now, after just over a year. These are pretty damn expensive sensors with non-replaceable batteries. I’m beyond frustrated. Does anybody have a recommendation for a weatherproof temperature sensor with user-replaceable batteries that works in the snow belt? For reference, it has dipped below zero a few times this past couple of weeks, but most normal “cold” nights hover just above zero.

Is battery powered a must have? Or could you do a mains powered unit inside and route a probe through the wall to the outside?


I could most definitely use an outdoor sensor with the radio indoors, or one that plugs into an outdoor mains outlet.

I should add, for those outside the US, that when I referred to “zero” I meant -18°C in modern parlance. :wink:

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I’m thinking of something like the Qubino. The probe shows an operating temperature down to -58 F:

And then the radio units say they’re good down to 14 F. I’m sure there are other options from m other brands with a similar design. I don’t have direct experience with any of them to give a recommendation though.


Yes, I clicked @JDRoberts’ link when I first found this thread, and gave them my email addy to be informed when it’s available again. Ta!

ETA: credit to @milandjurovic71 for the first Qubino link! Mea culpa.


Oh! A lifetime ago (coinciding with the premiere of Windows 98!) I received from a friend at Dallas Semiconductor one of their prototype 1-Wire Weather Stations, and built up a relatively complex system around it using many other sensors and modules and software developed by the 1-Wire online community.

While the weather station has been offline for around 15 years and was eventually sent to a farm upstate, I may still have some genuine DS18B20 temperature sensors in my shop… basically the same sensor that’s in the Qubino probe!

Reading a bit more, it seems the same probe is used with the Fibaro Smart Implant, and there’s a DTH available for it. I may have to have a go. Hopefully the temperatures here moderate soon and I can squeeze a few more months out of the Comfort Strip.

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Ok I should probably read through the lengthy Fibaro Smart Implant thread again, but can someone here maybe say if pull-down resistors are needed on the DS18B20s using the Fibaro? Their docs don’t mention it.