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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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United States
Stock in: china


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Buyer Protection

  • Full Refund If you don't receive your order
  • Full or Partial Refund , If the item is not as described Learn More >
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

Questions & Answers

  • Q hi, what's the lock's diameter? thanks

    By Pierre February 25, 2018

    A Lock size: 7 * 3.3 * 9.8cm/ 2.7 * 1.3 * 3.8in

    Reply By Customer Service Center February 27, 2018

Customer Questions & Answers

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0 votes

Is my lock defective or broken? I only hear 2 beeps when fresh batteries are installed.

  • I am sorry I do not know. Call manufacture.

    By Rowena on May 18, 2018

See more answers (2)
0 votes

I can't see the keys very well. What kind are they? In other words, how simple are they to pick - bypass, etc.

  • I'm not sure what you mean by what kind of keys are they? I'm very satisfied with this purchase. I think the pitch of the alarm itself would give a would-be-thief a heart attack from fright.

    By marian reed on March 30, 2018

See more answers (1)
0 votes

If it comes with a cable or chain; how long is the cable or chain??

  • It comes with a cable of 80 cm,thanks

    By Mio Saeki on February 17, 2018

0 votes

is it waterproof and cold proof

  • Yes it is , i have been having it for nearly a year it has been exposed to rain and cold.

    By Payam on November 4, 2017

See more answers (1)
0 votes

How many mms is the shackle part?

  • about 4 mm

    By pete serven on May 25, 2017


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Customer Reviews

Average Rating:


based on 55 Customer Reviews

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  • By c***t

    January 17, 2016

    great little lock, swift delivery

    Is this helpful? (0) (0)

  • By g***1

    December 8, 2015

    Item received, all good thank you.

    Is this helpful? (0) (0)

  • By j***v

    December 7, 2015

    hefty locks, quickly shipped.

    Is this helpful? (0) (0)

  • By j***2

    November 25, 2015

    Fast delivery, very pleased with item, thank you.

    Is this helpful? (0) (0)

  • By a***n

    October 18, 2015

    Excellent service great product very satisfied would use this seller again

    Is this helpful? (0) (0)

  • By d***7

    September 30, 2015

    Fast shipping thanks

    Is this helpful? (0) (0)

  • By j***s

    September 25, 2015

    excellent product and value for money recommend seller

    Is this helpful? (0) (0)

  • By s***l

    September 25, 2015


    Is this helpful? (0) (0)

  • By a***y

    September 23, 2015

    thank you for great product and fast delivery+++++

    Is this helpful? (0) (0)

  • By t***o

    September 22, 2015

    All good, fast delivery.

    Is this helpful? (0) (0)

  • By d***5

    September 12, 2015


    Is this helpful? (0) (0)

  • By f***d

    July 28, 2015

    nice product thx

    Is this helpful? (0) (0)

  • By e***s

    April 27, 2015

    Goods arrived, fast delivery.thank you.

    Is this helpful? (0) (0)

  • By p***x

    April 15, 2015


    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)

  • By l***o

    February 19, 2015

    awesome ! thank You!

    Is this helpful? (0) (0)

  • By g***u

    February 9, 2015

    AMAZING!! SUPR FAST SHIP! works SO well Use it on front doorknob. will buy more!

    Is this helpful? (0) (0)

  • By a***8

    February 2, 2015

    best best best very fast shipping all good briliant seller

    Is this helpful? (0) (0)

  • By w***k

    January 25, 2015

    Great got it thank you

    Is this helpful? (0) (0)

  • By g***k

    January 3, 2015

    exellent service thanks

    Is this helpful? (0) (0)

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