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Portable Square Gas Alarm Detector

16 reviews
100% of buyers enjoyed this product! 176 orders
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  • Item Type: Home Security
  • Material: Plastic
  • Sound Level: 85 dB/m
  • Working temperature: 0-50 degree
  • Environment Humility: 10%-95%
  • Alarm Density: 2500 PPM (±1500PPM)
  • Size: 70 x 73 x 35 mm
  • Features: Home Security, Portable Alarm Detector, Square Alarm Detector, Gas Alarm Detector


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

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

good product and quock delvwru

verifed buyer
22 Apr 2019

Everything is super!!!!

verifed buyer
19 Apr 2019

Works as it should!!! Good sensor. Delivery is fast. Thank you!!!!

verifed buyer
19 Apr 2019

Works. Checked with gas from the can)

verifed buyer
17 Apr 2019

Fast shipping. Good product

verifed buyer
16 Apr 2019

Good contact store , on time , working well

verifed buyer
9 Apr 2019

Fast shipping. Corresponds to the description. Everything works.

verifed buyer
8 Apr 2019


verifed buyer
5 Apr 2019

Works, very satisfied, checked for a lighter. Thanks to the store, and for the delivery!!!.

verifed buyer
3 Apr 2019


verifed buyer
22 Mar 2019

In principle it works, it lacks to prove its effectiveness. Fast shipping!

verifed buyer
20 Mar 2019

Sensor sensitivity is not high.

verifed buyer
18 Mar 2019

Probably worth your money, fast delivery

verifed buyer
17 Mar 2019

just plug in, easy use. if working , need order more

verifed buyer
15 Mar 2019

Very quickly to kaliningrad. a little later i will check and sow.

verifed buyer
13 Mar 2019

To moscow a little more than 2 weeks. It's okay.

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