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433MHz Wireless Fire Protection Smoke alarm Detector Alarm Sensors For RF WIFI GSM home security Alarm Systems

8 reviews
100% of buyers enjoyed this product! 65 orders


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YG2 433MHz Wireless Fire sensor Protection Smoke Detector For WIFI GSM PSTN office home security Alarm Systems(No 9V battery)

It can also be used independently, on-site alarm

YG2 Product Description

Cordless Smoke Detector Alarm, general purpose ideal for all areas: house, shop, hotel, restaurant, office building, school, bank, library, computer house and storehouse etc.Alert and warn people stay far away from danger field when it detected smoke.The detector adopts the special structure design and ASIC, has the dustproof, mothproof and anti outside light interference feature etc.

Alarm test button
Easy to install
Photoelectric sensor for early detection from all directions
Alarm volume: 10 feet to 85 dB
Wireless mode: Alarm transmission frequency F:433mhz
Round Size: R = 102mm, H = 31mm
100% Brand New
Excellent stability.
High sensitivity.
Alarm test button for easy testing.
Low battery indicator.
9V battery(not include)
Alarm Current: 10-30mA
Standby Current: 10μA
Operating Temperature: -5°C ~ +50°C
Operating Humidity: 95%RH
Detecting Area:20 square meter
Smoke Sensitivity: 0.65%/FT +/-15.5%/FT


Brand Name






Model Number



Smoke Detector

YG02 Power supply

DC9V alkaline battery (no include)


Office/Home Smoke Alarm System

Working temperature

0℃ ~ +50℃

YG02 Feature-1

433mhz(NO WIFI Function)

YG02 Feature-2

can be used independently


Detect smoke of fire

Local Alarm

sound and led flash

Alarming sound

more than 80dB

Shipping and delivery

We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. 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 have specified combined shipping.

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

Refunds & returns policy

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:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
  • You do not want the product you have received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • Your order does not arrive due to exceptional circumstances outside our control (e.g. 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 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

8 reviews
100% of buyers enjoyed this product!
5 stars
( 8 )
4 stars
( 0 )
3 stars
( 0 )
2 stars
( 0 )
1 star
( 0 )
  1. A***v

    Ещё не проверял.

  2. M***v

    все работает, проверял на табачном дыме

  3. A***a


  4. J***d

    Fonctionne très bien. S’accorde facilement avec mon alarme maison 433Mhz. Merci.

  5. A***a

    fuciona ok con mi central gsm comorada hace 5 años

  6. S***N

    С дымом не проверял, а тестовый сигнал шлет. Надеюсь обнаружение работает исправно.

  7. A***n

    Бытрая доставка. Легко подключился к сигнализации Emastiff.

  8. M***a

    запитывается от 9в батарейки аля крона, в комплекте нет – никто и не обещал если открыть – есть подстроечный резистор – можно настраивать чувствительность сработка громкая, сначала секунды. 3 мигает – если источник дыма устранен – не срабатывает – в общем норм

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