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Wireless Alarm Sensor for Door

28 reviews
100% of buyers enjoyed this product! 270 orders
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  • Item Type: Sensor
  • Material: Plastic
  • Current: 20 mA
  • Frequency: 433 MHz
  • Power Supply: DC 12 V/ 23 A Battery
  • Features: Electronic, Wireless, Sensor, Gadget, Accessories


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of homeforsmart (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

28 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
3 Dec 2020

Product came as the announcement, shipped fast and well packed.

verifed buyer
30 Nov 2020

Delivery 3 weeks before the Chelyabinsk region. The type of battery used is not the most popular 12 V, 23A. When ordering, I somehow missed it and at first was very surprised what to put there, K. I did not encounter such a food element before. Battery Type A23, mn21 (manufacturers have different markings).

verifed buyer
19 Oct 2020

Goods received. Delivery is very fast. From Russia. Done qualitatively. We'll see about the work. While firm 5. exactly as in the description and in the photo.

verifed buyer
8 Oct 2020


verifed buyer
1 Oct 2020

It came quickly. Took in addition to the set. It came perfectly. Works well. XS as in the frost the battery will be.

verifed buyer
15 Sep 2020

Perfectly suited to alarm emastiff WiFi + GSM alarm system. Works without problems, there is a sensor response indicator on the case.

verifed buyer
7 Sep 2020

Excellent. Thanks!

verifed buyer
10 Aug 2020


verifed buyer
15 Jul 2020

არ ჩამოვიდა კორონას გამო მაგრამ ფული დაბრუნდა Back 5Day

verifed buyer
11 Jul 2020

Works, delivery 2 weeks.

verifed buyer
4 Jul 2020

All bundle

verifed buyer
20 Jun 2020

Everything has come, excellent quality

verifed buyer
15 Jun 2020

All ok!!!

verifed buyer
22 Apr 2019

Thank you very much to the store!!!

verifed buyer
20 Apr 2019

Original Product. Good Seller, quick responsive. Fast Tracked Delivery

verifed buyer
11 Apr 2019


verifed buyer
8 Apr 2019

Very good and reliable store.

verifed buyer
2 Apr 2019

Fast shipping, product conform to description.

verifed buyer
1 Apr 2019


verifed buyer
31 Mar 2019

Very good

verifed buyer
30 Mar 2019

Good quality product. Everything works, the signal transmits. I really like it! Later i will write on how much battery is enough.

verifed buyer
5 Mar 2019

Long delivery, but everything works.

verifed buyer
11 Feb 2019

Works fine, very recommended and takes even if the two sides are a few cm distance

verifed buyer
11 Feb 2019

Not checked yet, but very fast delivery (~1 week) Thanks

verifed buyer
7 Feb 2019

The order, the description correspond, work.

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