Alexa compatible smart plug – TECKIN SP21


It has been a while since we introduced you to a smart plug. It must be said that we have already tested a good number of them… But as this is a product of choice for voice assistant users, we are constantly looking for more aesthetic and more efficient models. For this eighteenth Alexa-compatible smart plug test, we turned to the TECKIN brand. A Chinese brand, as is usually the case, which is not unknown to us since we regularly offer you good deals on the different models it offers. The feedback from our members was always positive, so we decided to take a closer look at the issue and acquire a single SP21 plug.

TECKIN SP21: elegance and compactness

Our opened package, we discover a white cardboard box with a beautifully crafted satin touch. A visual shows the front panel of our “smart plug” and indicates its model: the SP21. We find the traditional Google Assistant logos, but especially “Works with Amazon Alexa”. It’s coming, that’s what we’re interested in. On the upper side, the TECKIN brand logo. The side faces include pictograms indicating the possibility of controlling the device via mobile application, Wi-Fi, voice and the programmable nature of this socket. Programming which, as you may have already guessed, will be possible via the Smart Life application which you can download very quickly by flashing the QR Code on the packaging. Finally, at the back, you will find an exhaustive technical sheet, as well as the company’s contact details. Our first impression is excellent, let’s see if it is confirmed…

At the opening, the four holds of our lot occupy the entire space and, once again, the printing is very good. The plug is one of the most compact and sober models. All dressed in white, she wears the brand logo, and as required by legislation, a technical data sheet and regulatory markings: CE, RoHS, etc. As usual, you will find a power button backlit by a blue LED with discreet lighting. Finally, a small QR Code refers us once again to the essential Smart Life application of Tuya Smart that we will open at this step in order to proceed with the installation of this famous TECKIN SP21.

Technical specifications

Before proceeding to installation, let’s take a look at the technical data sheet.

  • Brand: TECKIN
  • Model: SP21
  • Input AC voltage: 100-240V
  • Wi-Fi bands: 2.4 GHz
  • Rated current: 16A
  • Max power: 3300W
  • Operating temperature: -20 °C – 50 °C


If you have never used the Smart Life app before, it is time to download it. Available for iOS and Android, it works with the world’s first smart home platform: Tuya Smart.

The procedure is simple and we have described it many times in our smart plug tests. It is exactly the same as described in this tutorial, except that you will have to choose a plug and not a bulb in the first menu. The installation should take no more than 30 seconds and suddenly accelerate to around 15%. Otherwise, there is a problem.

Make sure that the mobile device on which you downloaded the application is connected to your home Wi-Fi in the 2.4 GHz band, otherwise the application will not be able to communicate with your smart socket. The plug will discover alone the 2.4 GHz and does not see the 5 GHz, so there is no need to attack it.

TECKIN SP21 with Alexa

The compatibility with Alexa is what we mainly concern about. But don’t worry since the TECKIN SP21 plug works under the Tuya, Inc. platform.

So all we have to do is activate the Smart Life skill on Amazon, if we haven’t already done so. Normally, Alexa will detect new devices alone. If not, simply run a detection.

To turn it on, we just have to say “Alexa, turn on Teckin”. To turn it off, you will have guessed it: “Alexa, turn off Teckin”. It’s no more complicated than that.

If the socket does not offer power consumption monitoring, you can nevertheless integrate it into your Alexa routines, or into Smart Life scenarios. Many programming features are available, to turn on the plug at a specific time or with a voice command, then turn it off after a while. Great practice if you want, for example, to charge your smartphone for an hour and not leave it connected to the mains all night, for example.

In conclusion, this TECKIN SP21 plug is one of our favorite models. Perfectly compatible with Alexa via the Smart Life skill, its reasonable price makes it a wise choice for those who want to equip themselves and enjoy the pleasure of home automation without spending a fortune.

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