wofea 5pcs/lot 433Mhz/315Mhz Wireless Fire Smoke Detector Alarm Sensors Home Security System

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Note: Default wreless frequnce is 433mhz , If you want 315mhz , Please leave massage in your order

Our smoke detector is a great household necessity to protect your families’ safety, and it is also perfect for using in factory, school, hotel, bank, restaurant and many other places. It is highly sensitive, very easy to install with included screws. when the smoke leakage occurs, the red indicator will flash and remind you, accompanying with a loud alarm sound, and 433MHz/315MHz wireless alarm signal transmission, to ensure personal safety. And it is operated by 1 pc 9V battery, energy-saving and simple to use. Such a practical smoke detector, worth buying!
The shell of our smoke detector is made of high-quality ABS material, which makes it eco-friendly, sturdy and durable to use.
Our wireless smoke detector is adopting unique structural design and SMT manufacturing process, so it is highly sensitive and has good functions of dust and insect prevention, strong anti-interference and high stability.
With LED indicators, when the gas leakage occurs, the red indicator will flash and remind you, and 433MHz wireless alarm signal transmission, to ensure personal safety.
Easy to install on the ceiling or wall with included screws, and it is operated by 1pc 9v battery(not included), energy-saving and easy to use.
With a test button, it can take analog alarm tests of the smoke alarm in the first time to use.
A great household necessity to protect your families’ safety. And it is also perfect for using in office, hotel, factory, school, bank, restaurant and many other places.
Condition: 100% Brand New
Shell Material: ABS
Color: White
Standby Current: ≤10μA
Alarm Current: ≤15mA
Operating voltage: DC9V
Power Supply: 1pc 6F22 battery (not included)
Alarm Indication: Wireless Output & Led Light Flash
Transmission Frequency: 433MHz/315MHz (It can be used with connecting the Home Alarm System)
Transmission Distance: 100M (In open air and without any obstacle)
Operating Temperature: -10℃ to +50℃
Operating Humidity: ≤95%RH
Size(Dia x T): Approx. 12.5 x 5.5cm / 4.9 x 2.2inch
Weight: Approx. 180g
Package Included:
1 x Smoke Detector (Battery is not included)

Wide Applicability:

Applies widely to works, banks, stores, warehouses, offices and homestead, thanks to its kinds of protection abilities like anti-theft, anti-robbery, fire prevention, gas leakage protection and most importantly, emergency calls.


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 10-20 Business days
Canada, Europe 10-20 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, you can request a refund or reshipment for ordered products if:

  • 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.

We do not issue the refund if:

  • 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 . (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of https://besthomeelectronics.com

*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.

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