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Door Alarm Sensor Systems

(51 customer reviews)
In Stock (Ships Out Within 24 Hours)
  • This product is easy to set up when necessary and is easy to restore as well
  • The sensor is very sensitive that it can set off alarm immediately upon contact with the connecting metal object
  • Very lightweight and portable; This alarm system is ultra-small
  • Size: 98 x 55 x 25 mm / Loudness: 120dB / Power source: 9V battery (not included)
  • Package contents: 1 x Door Alarm Sensor Systems

$19.97 $28.97

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Door Alarm Sensor Systems

This Door Alarm Sensor Systems will notify you if an unexpected guest touches your house’s door handle. Be worry-free from burglars and thieves when you are alone at home or gets busy in your home office. Feel safe while your kids and pets are left unwatched inside your house.

Be As Safe As Possible

Our homes should be where we feel the safest. We just want to be as safe as possible and protect ourselves and our homes from scary incidents whether we are living alone or with our dear ones. Hence this home security system which will not cost you a fortune but will definitely save you from putting your security at risk. Comfort at home isn’t just about being cozy, it is also about feeling safe.

Sensitive Alarm Features

This Door Alarm Sensor Systems has a sensitive sensor that works very well with metals such as doorknobs. It alarms with 120db siren when it senses human contact on the connecting metal material. Alarm automatically sets off 0.10 seconds upon the trigger or contact.

Practical and Convenient

Do not worry about the loud unwanted warning sound to last more than necessary. The noise goes off as soon as the human contact stops on the object it is connected to. This alarm system is not a fixed installation so you can only have it on your door when you choose to have it there. Being lightweight and ultra small (98 x 55 x 25 mm), you only need to hang it on your door handles and it will be perfectly working 30 seconds after you turn on this Door Alarm Sensor Systems

Powered with a 9V battery (not included in the package).

Avoid inconvenience. Do not use it on metal gates since this alarm system has a sensitive sensor feature which could result in a frequent alarm set off.

Based on 51 reviews

4.7 overall
41
5
5
0
0

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  1. A***a

    very fast delivery. works good, let see in the future

    A***a

  2. B***i

    Products comply with the photo good manufactory very light désoler I do not yet tester.

    B***i

  3. Customer

    10 stars

    Customer

  4. Customer

    Fast!!!

    Customer

  5. A***e

    Exactly as described, A+++++

    A***e

  6. T***r

    🙂

    T***r

  7. Customer

    noisy ! 😉 thank you for fast skipping.

    Customer

  8. Customer

    Thank you

    Customer

  9. R***r

    it works

    R***r

  10. P***.

    Works very wel, delivery was fast and good

    P***.

  11. A***a

    ok

    A***a

  12. R***r

    Fast delivery and works fine. Thanks

    R***r

  13. R***n

    Product works very well and easy to use. Maybe an idea for the next generation door sensor: one with remote control would be very convenient.

    R***n

  14. R***d

    OK

    R***d

  15. Customer

    Geras dalykas

    Customer

  16. Customer

    good store. Recomended

    Customer

  17. M***U

    More tried but deneyince vision belirteceğim

    M***U

  18. Customer

    The product looks scratched up and came without a box…

    Customer

  19. S***v

    Not understand how it works, but working ays. No motion sensor, not quantity. Kind of static. But the function is performed with a bang. Recommend and store (FAST) and goods. 5 stars.

    S***v

  20. B***r

    Great device. Originally bought as a technical device. But yesterday evening I had an alarm for the first time. Someone was in our house around 4:30 a.m. and wanted to gain access to our apartment. After the alarm I only heard the front door slam shut and the lights went on in the yard. The good thing about this detector is that you don’t even have to open the door to trigger the alarm. Just your hand at a distance of 3-4 centimetres from the door knob triggers the alarm. So from the very beginning you can rule out the possibility that someone is tampering with the door unnoticed and is suddenly standing in the apartment. Many thanks for this super invention. Also the dispatch ran surprisingly fast. By the way, this is not a favor rating, but based on an actual incident yesterday evening. If you have any questions, I will be happy to answer them as a real-life person (only product buyers without any connection to the manufacturer or distributor) at [email protected]

    B***r

  21. G***y

    Любіть Up, yak sonce, любіть, Yak vіter, I трави, I Vod, The rate щасливу I in радості мить, Любіть from rate негоди!

    G***y

  22. W***g

    I wish there was 1/4 in a star , so I could say 4 3/4

    W***g

  23. N***n

    Sends very fast, I will buy a pile and I’ll you post another notice to make you share this purchase. Thanks to soon

    N***n

  24. F***a

    Perfect

    F***a

  25. D***n

    It seems to be working, even though it seems lilke now quality platic etc. but cheap.

    D***n

  26. M***n

    Super!!! Well packed

    M***n

  27. M***e

    Very good toegekomen, works well be very sensitive and makes sometimes alarm even if no movement is. Go once must test what the best arrangement is.

    M***e

  28. M***e

    Well received, Is quite sensitive and sometimes goes even without leaving any movement or something is, Go look again to the ideal installation.

    M***e

  29. Customer

    Recommend store. All works. Packed well. Going for about a month.

    Customer

  30. G***v

    It’s even earlier. komlekte no battery. buy battery rectangular, fingers are not suitable. sound is that little skates not socked. hope thieves skates move, if will climb.

    G***v

  31. H***t

    Super!

    H***t

  32. J***z

    Thank you I really liked

    J***z

  33. F***H

    Thanks

    F***H

  34. S***i

    Thanks good

    S***i

  35. Customer

    Good!

    Customer

  36. T***l

    very good)

    T***l

  37. Customer

    Berry fast and good

    Customer

  38. G***h

    Pay attention! One cable alarm cut (порвн)! AND this is the second time. Check The workers, ктотрые packaged goods. Not a problem for me-отремонитрую itself. But unpleasant to receive the second package with a torn belt.

    G***h

  39. D***s

    Great!

    D***s

  40. A***u

    Beautiful product teşekkürler AliExpress family

    A***u

  41. I***l

    Thank you

    I***l

  42. R***r

    Polecam!

    R***r

  43. M***h

    good quality

    M***h

  44. A***m

    Work, the handle can not touch even. Delivery is very fast, recommend.

    A***m

  45. M***z

    Ring a bell strongman, But didn’t give Utility

    M***z

  46. G***a

    جميله powerful sound

    G***a

  47. R***r

    thanks

    R***r

  48. R***r

    suppose to take a 9 volt battery but it don’t have snap on s for 9 volt battery so the battery don’t fit well . it’s junk.

    R***r

  49. M***l

    Hello, Hot réceptionné, cons I n’avais not well-read, battery type: 9 v I will try as soon as j’en aurai bought one. Delay free very well. So to see,

    M***l

  50. U***j

    not very loud

    U***j

  51. M***a

    Love it. The alarm is so loud. Very effective to put in the main door. Arrive so early. I recommend.

    M***a

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