Plug&play temp sensors without hub

Devices & Integrations
1

Dears. I’m looking for a simple temperature sensors that will work plug and play with ST without any hub required. Here is my target setup:

  • I do already have a Samsung EHS pump
  • I have already equipped that with a WIFI module and connected to the ST app so I can increase / decrease heating etc

To the same network I’d like to connect temp. sensors for simple automation rules from the ST app and later on some WiFi plugs to turn on a water circulation pump as well.

I really hope there are some temp sensors on the market that would easily work in the scenario above. Could you please help me with this?

2

I’m using the Tuya Wi-Fi Temperature and Humidity sensor. It is USB powered so no issues with battery replacement. It gets added to the SmartLife app and then into ST through the cloud->cloud integration. I use it to measure temp in a closet and turn on a smart outlet that controls an exhaust fan when the temp threshhold is exceeded.

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2025-01-17 13.02.28
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2 Likes
3

Is there a reason why you don’t want a hub?

Those sensors would have to be WiFi devices - not very reliable and they eat batteries like crazy.

4

I think that would be an overkill for the scenario I want. Changing batteries every few months would not be an issue for me.

5

The one I suggested is USB powered so no battery required.

1 Like
6

Yeah. I saw your answer right after I clicked the submit button.

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7

@h0ckeysk8er Do you remember the models? It looks very similar to my setup. Also do you know if there are any battery powered too? In som places I’d prefer no extra cables.

8

I posted a link to it in Amazon.

9

Thank you! I found the following from the same brand: https://www.amazon.com/WiFi-Temperature-Humidity-Sensor-Thermometer/dp/B0B58VSJDG/ref=pd_aw_fbt_img_m_sccl_2/143-3877598-4263662?pd_rd_w=o6EJQ&content-id=amzn1.sym.8542ec45-b43d-4d2a-a521-9356193631fc&pf_rd_p=8542ec45-b43d-4d2a-a521-9356193631fc&pf_rd_r=GPZTJH8MSMEY36XQS4DV&pd_rd_wg=zKBOz&pd_rd_r=53e3e8cf-71a3-4772-a126-59d0f73db704&pd_rd_i=B0B58VSJDG&psc=1

Looks like something that could do the job for me.

Is there any magic needed to connect between the apps?

10

That one uses batteries not mains powered.

Onboard the device to the Smart Life app.

Add Device->Search “Smart Life”->Login using your Smart Life credentials.

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11

Thank you. Indeed super easy.
I’d prefer battery powered now for testing. Once it works I’ll extend it with more sensors.

12

Well… In that case, you could get a Tapo T310 or T315 with a tiny thing called Tapo H100 that you don’t have to call “hub”, just something that you plug in somewhere.

Batteries last two years, connected via WiFi and future proof, because the H100 acts as a Matter bridge.

15 bucks for each sensor, another 20 bucks for this little hu… box.

13

They don’t have to be Wi-Fi, there are some other options like the ones from Meross and SwitchBot.

And there are a few Wi-Fi ones which actually have decent battery life, in particular Shelly.

So more options than there used to be. :sunglasses:

1 Like
14

Pretty sure that there are options. Tapo is one of them.

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15

Thank you for all the suggestions. I’ll choose one for testing and let you know.

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16

If you want something that doesn’t require a hub at all, Shelly is probably your best bet.

They have done a lot of engineering work on their Wi-Fi versions, and the battery life is decent.

The Bluetooth only ones don’t work with SmartThings, but the Wi-Fi ones should.

Here’s the link to the US site, but they are available in many countries.

(You won’t be able to use any matter features from any brand with SmartThings unless you do have a SmartThings hub as well.)

These aren’t my favorite temperature sensors, but they are my favorite temperature sensors that don’t require any hub at all. :man_shrugging:t2:

Also note that in order to save battery life, like many Zigbee and Z wave sensors, these are not continuously online. They sleep much of the time and wake up, I think every 15 minutes or so, to send a report. That’s usually OK for temperature/humidity reporting, but I did want to mention it.