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Siren Alarm Lock Anti-Theft Security System Door Motor Bike Bicycle Padlock 120dB with 3 Keys Black

Siren Alarm Lock Anti-Theft Security System Door Motor Bike Bicycle Padlock 120dB with 3 Keys Black

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Stock in: china


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Combines locking function with alarming function.
Built-in movement triggered alarm, which can emit loud sound when the lock is hit or shaken.
Adopts MCU core procedures, high-tech integrated circuit and digital sensor chip.
Can be set to two states: mechanical lock and alarm.
Low false alarm rate.
Low power consumption.
Can be used on door, window, bicycle, container, motor bike, tricycle, pull gate, garden, etc.
Corrosion resistant, waterproof and durable to use.
Powered by six button batteries.
Supplied with three keys, convenient to use.

Note: When you place the shackle with groove into lock near key port, then the lock comes into alarming state. When the shackle with groove is placed away from key port, the lock is just in the mechanical lock state.

Color: black
Material: zinc alloy
Alarm decibel: 120dB
Power supplied by: 6 * AG13 button batteries
Lock size: 7 * 3.3 * 9.8cm/ 2.7 * 1.3 * 3.8in
Lock weight: 313g/ 11oz
Package size: 17 * 13.5 * 4.2cm/ 6.7 * 5.3 * 1.6in
Package weight: 374g/ 13.2oz

Packing list:
1 * Alarm lock
3 * Keys


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Customer Reviews

Average Rating:


based on 69 Customer Reviews

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  • By b***r

    December 12, 2017

    Fast Shipping, as Listed! Thanks 5*****s

    Is this helpful? (0) (0)

  • By PlantSerums

    October 20, 2017

    This would be perfect for something outdoors. I purchased it for a refrigerator lock, and was amazed at how big this was, which is why I only gave it 4 stars. This would fit a bike lock or storage lock because the shackle is huge. The photo doesn't really show how large it is. If my bike hadn't already been stolen this would have been a perfect lock. It will sound an alarm, that will draw people's attention and scare any would be thief.

    Is this helpful? (0) (0)

  • By h***1

    September 14, 2017

    Great service, excellent product.

    Is this helpful? (0) (0)

  • By Hakan cetinkaya

    October 31, 2016

    nice product but poor plastic it could be better

    Is this helpful? (0) (0)

  • By Andrew S.

    October 28, 2016

    It worked as expected. I loved the option to keep it locked with siren on or off.

    Is this helpful? (0) (0)

  • By j***v

    December 7, 2015

    hefty locks, quickly shipped.

    Is this helpful? (0) (0)

  • By g***t

    September 28, 2015


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  • By g***l

    September 27, 2015

    Ware okay, schnelle Lieferzeit, jederzeit gerne wieder

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  • By j***s

    September 25, 2015

    excellent product and value for money recommend seller

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  • By a***e

    September 13, 2015

    Alles bestens, sehr gerne wieder!!!

    Is this helpful? (0) (0)

  • By d***5

    September 12, 2015


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  • By t***0

    September 5, 2015

    quick ship and just as described! good seller

    Is this helpful? (0) (0)

  • By d***2

    September 2, 2015

    Alles bestens.

    Is this helpful? (0) (0)

  • By b***1

    August 31, 2015

    great sservice speedy delivery aaaaaaaaaaaaaa++++++++++ :-)

    Is this helpful? (0) (0)

  • By w***7

    August 29, 2015

    Alles OK. Schnelle Lieferung !!!

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  • By g***r

    August 28, 2015

    Alles bestens!

    Is this helpful? (0) (0)

  • By y***n

    July 29, 2015

    sehr professionell.immer gerne

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  • By p***x

    April 15, 2015


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  • By a***v

    April 7, 2015

    Perfect, fast shipment, ***** Seller!!! Thanks!

    Is this helpful? (0) (0)

  • By l***o

    March 8, 2015

    Exactly as described and a very fast shipment. Excellent Seller !!

    Is this helpful? (0) (0)

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