WiFi door sensor with 2.4 GHz Wi-Fi, compatible with Alexa and Google Home, on a light grey background

Wifi door sensor with 2.4 GHz Wi-Fi, works with Alexa and Google Home

Get a phone alert the moment a door or window opens, so you know what is happening at home when you are not there.

4.8 from 71 buyer ratings

Works with Alexa, Google Home, Tuya / Smart Life

Pack 1 sensor
Estimated arrival Wed, Nov 4 – Sun, Nov 8 to ChicagoEstimated arrival Nov 4 – 8 to ChicagoAn estimate, tracked from China to your door.
Wifi door sensor with 2.4 GHz Wi-Fi, works with Alexa and Google Home$32.99
Tracked shippingIncluded
Taxes & import dutiesMay apply at your door
You pay$32.99
or
Questions? Email help@viversio.com. We reply within 1 working day.
Ships from China. That's why it costs less. Tracked from day one.
30-day refunds if it's faulty or not as described, plus your 14-day legal right to withdraw.
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What it does

You are at work when your phone buzzes: this wifi door sensor caught the back door opening, and the alert reads "Open Door Alert: Door Is Open." No more guessing whether the door shut after the kids left for school. The two pieces split apart when the door opens, and the app reports it to your phone. It ships direct from China, so it costs less than branded sensors in local shops.

This door open close sensor is two white pieces: a sensor body about 70 mm long with a button, a blue LED and a battery compartment, and a magnet piece about 50 mm. You mount them side by side with a small gap. When the door or window opens, the pieces separate and the app sends an "Open Door Alert: Door Is Open" to your phone.

You install 2 AAA batteries in the sensor body and pair it with the Tuya or Smart Life app on a 2.4 GHz Wi-Fi network. The back plate has two screw-style holes for mounting. It works as a wifi window sensor too, on a window where the two pieces separate when it opens.

It suits anyone who wants to know when a door or window opens while they are out, and who already uses the Tuya or Smart Life app. It does not suit a home with 5 GHz Wi-Fi only, since the sensor connects on 2.4 GHz. Two AAA batteries are required and are not included.

Ships from China with tracking. The estimated arrival range for your country is shown next to the price.

  • Know a door opened the moment it happensThe sensor body and magnet piece separate when a door opens, and the Tuya or Smart Life app sends an "Open Door Alert: Door Is Open" to your phone. Mount one piece on the door leaf and the other on the frame. You find out the door opened while you are out, not hours later.
  • Fit it to a door or a windowThe sensor body is about 70 mm long and the magnet piece about 50 mm, so the pair sits side by side with a small gap between them. The same set works as a window alarm sensor: the two pieces separate when the window opens and the app reports it.
  • No wires to a hub or a power outletTwo AAA batteries run the sensor, and they are not included, so pick up a pair before you install it. It connects over 2.4 GHz Wi-Fi straight to the app, with no cable to a hub or a power outlet. As a wireless door alarm sensor it goes where the door is.
  • Check the alert from anywhereInstall the Tuya or Smart Life app, pair the sensor on a 2.4 GHz network, and open the app to see whether the door is open or closed. It also links to Alexa and Google Home, so the alert fits beside the rest of your smart home setup.

What buyers say

From people who bought this exact product. Every rating counts in the score, the low ones too.

4.8
71 ratings

Reviews from people who bought this same product, at Viversio or elsewhere.

49 ratings have no written review, only talk about delivery or were filtered as spam, so they aren't listed. They still count in the score.

  1. It's not the first door detector I've used, but I quite like this one; it seems very compact, although it's a bit wider than the others I have. The setup was very quick.

    A buyerSpainBought: Option C

  2. Very easy to link to the app. It doesn't always respond, but it's okay. It doesn't come with batteries.

    A buyerSpainBought: Option B

  3. Excellent cost-performance ratio.

    A buyerBrazilBought: Option A

  4. 100% recommendable

    A buyerUnited StatesBought: Option C

  5. works pretty well, I wouldn't recommend using SmartLife for it as ithe interface kinda sucks but the product is good and easy enough to install. you may need to glue the smaller part though, if it's on a rounded or uneven space

    A buyerUnited StatesBought: Option C

  6. It arrived earlier than expected, I have only tested one of the 6, and it works correctly. There is a slight delay in the notification, but I expected it since I have others installed, but it's not important to me.

    G.SpainBought: Option A

Specs

Model numberER-TYMC
Wireless type2.4 GHz Wi-Fi (not 5 GHz)
Battery2 × AAA (not included)
AppTuya / Smart Life
Sensor body lengthabout 70 mm
Magnet piece lengthabout 50 mm
CertificationsCE, ROHS
  • CE
  • ROHS

Delivery to Chicago

Every step is tracked. The tracking link comes by email, in your language.

  1. Order placedYou get a confirmation straight away.
  2. Packed and handed to the courierTracking number sent to you.
  3. Flies to United StatesThe courier may collect import duties or taxes on delivery.
  4. At your doorEstimated from recent deliveries to your country.

Returns

Plain rules, no small print.

30 days, full refund if faultyFaulty, wrong or not as described? We refund you in full and pay for the return. Start from your order page or email us.
Your legal right to withdrawIn the EU and UK you can also cancel within 14 days of delivery for any reason. That's your legal right. You pay the return postage.

Questions

Will it work with my Wi-Fi router?

Yes, if your router has the 2.4 GHz band turned on. The sensor connects on 2.4 GHz only and does not support 5 GHz, so a 5 GHz-only network will not reach it.

Can I use it on a window instead of a door?

Yes. Mount the two pieces so they separate when the window opens and you have a wifi window sensor: the app reports the opening the same way it does for a door.

Do I need a hub or a power outlet?

No. It connects over 2.4 GHz Wi-Fi to the Tuya or Smart Life app, and it runs on 2 × AAA batteries. Nothing runs from a hub or a wall outlet.

Are the batteries included?

No. You install 2 AAA batteries in the sensor body yourself; the battery compartment sits on the sensor body beside the button and the blue LED.

Will it fit my door?

In most cases, yes. The sensor body is about 70 mm long and the magnet piece about 50 mm, and the two sit side by side with a small gap, one on the door leaf and one on the frame.

Why does it ship from China?

We buy from established suppliers in China, and they ship your order straight to you. No local warehouse is why the price is lower. The trade-off is time, so you see the estimated arrival before you pay.

Will I pay anything when it arrives?

Possibly. Import duties and taxes for United States aren't prepaid yet, so the courier may collect them on delivery. Nothing is added to our price at checkout.

Who is Viversio?

Viversio is a brand of Ravinaro LLC, a company registered in the United States. We choose devices from factories with strong track records, and a real person answers every email.

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