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Home Security 85dB Warning High Sensitive LCD Photoelectric Independent CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector

21 reviews
100% of buyers enjoyed this product! 3879 orders
US $16.00
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Features: Sensitivity/Alarm Time: Within 60~90 minutes at 50ppm CO concentration; Within 10~40 minutes at 100ppm CO concentration; Within 3 minutes at 300ppm CO concentration LCD Displayer (optional): 4 digits LCD displayer Audibility: 85dB ( at 1m distance ), Frequency 3 – 0.5KHZ Standby Current: <50μA Alarm Current: <50mA Standby Mode: Green Led flashes once every 30 seconds Alarm Mode : Red Led quickly flashes 4 times with unit chirping every 5 seconds, then repeat, Low-bat Indicator:Chirp every 30s as battery lower than 3.3V with green LED flashing and Lb on LCD Mal-function Indicator: Chirp every 30s with green LED out and Err on LCD Power consumption: 0.3mW Size: 10 x 4cm Powered By: 3 x AA Batteries (Not included) A perfect item for protecting your family from the dangers of carbon monoxide Advanced level of protection, easy to read with the digital display, even in low light conditions Displays the level of carbon monoxide the unit is sensing Green LED: Flashes every 30 seconds to indicate the unit is operating properly. The green LED will also flash before CO reading is taken and when any button is pressed. Red LED : When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound. The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red LED flash. This cycle will continue for 4 minutes and then change to 1 cycle every minute until the device is reset or the CO is eliminated. Test/Reset button is designed for weekly testing if it works properly and reset the unit during CO alarm Alerts users when batteries needs to be replaced This alarm is highly recommended to be mounted on a wall surface Compact, lightweight & easy to operate Packing Content: 1 x Carbon Monoxide Detector (not included battery ) 2 x Screws 1 x English manual Payment: • Payment must be made within 3 days when order placed.
• If you have a problem with payment,please contact with us or the customer service of Aliexpress.

•We will ship package in 2-3 business days after payment clear. •We can't control service transit time, this information is provided by the carrier and excludes weekends and holidays. so please give us an opportunity to check package for you . •SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays.Transit times may vary, especially during the holiday season. • If you have not received your shipment within 60 days from payment, please contact with us. We will track the shipment and give a reply to you as soon as possible. Our goal is customer satisfaction! Warranty •1 Years replacement warranty. •We benefit for all item sale. If you need help and have any other question , please feel free to contact us by eBay message . •Return is not accepted if you change your mind or purchased the wrong item. •Buyer is responsible for return shipping costs and insurance. •Shipping/Handling/Insurance costs are not refundable.


•Your Positive feedback and all 5 stars are important to us which encourage us to do better and support best service and good product for all clients .Thanks in advance for you leaving positive feedback and 5 stars. •Our aim is we don't feel Satisfaction until you satisfied with our product and service . •Please don't leave negative feedback and low score, because that won't solve problems. Please give us an opportunity to service you again . Contact Us •Hours of Operation – We are open Monday through Saturday 9:00am – 6:00pm. If you mail us a question after business hours, we will do our best to answer your question. If not, we will get back to you on the following business day.

Thanks for your visit and welcome to visit us again! `(*∩_∩*)


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 ElectricRCToys (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

21 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
18 Apr 2018 02:34

Good store

verifed buyer
18 Apr 2018 01:09

sensor arrived damaged lightly in but condition good in package. packing standard has the parcel. not work in tested. just tested selftest & power on. to store this recommend highly cooperation! посилка прийшла досить швидко. all the way відстежувалася. паркування стандартне: тоненький, box додаткова плівка. дорозі була пошкоджена packaging, цілий sensor itself, вплине сподіваюся роботу пристрою not on. by inserting the batteries, включається, test pass. with the спрацьовує chi s 'ясую пізніше і відпишуся, above just bo-плитою газовою мовчить. продавця співпраці to recommend!

verifed buyer
17 Apr 2018 22:47

all ok

verifed buyer
17 Apr 2018 15:01


verifed buyer
17 Apr 2018 11:35

received. have not tested.

verifed buyer
17 Apr 2018 09:55

it is fast, no нареканий product, matches the description. good store. fast shiping. recommend i.

verifed buyer
16 Apr 2018 12:38

доехала quickly. печкой check with try.

verifed buyer
16 Apr 2018 07:46

The fast delivery and good item. For testing I used several candles and a pan for testing

verifed buyer
15 Apr 2018 06:25

3 order come. отслеживалась package. but, unfortunately, can not say more, more checked and not as (business trip am).

verifed buyer
15 Apr 2018 06:24

2 дошёл order, пакомат through received. all, neat and work. battery no included. and store recommend.

verifed buyer
14 Apr 2018 06:21

all good

verifed buyer
13 Apr 2018 22:12

fast shipping goods is good, but as разобралась until put batteries. пробовала and not in action.

verifed buyer
12 Apr 2018 23:22

молодец store, all is very promptly. packing excellent. have hung work. recommend to cooperation.

verifed buyer
12 Apr 2018 10:35

exhaust gas to check. work.

verifed buyer
12 Apr 2018 09:59


verifed buyer
12 Apr 2018 09:16

Fast delivery (3 weeks).

verifed buyer
12 Apr 2018 07:10

all. quickly come

verifed buyer
11 Apr 2018 15:09


verifed buyer
10 Apr 2018 13:13

thanks it's original recommend store... very fast shipping.

verifed buyer
9 Apr 2018 20:20

Received, worked

verifed buyer
9 Apr 2018 11:13

goods received. all. quality is good.

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