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Roberta's Inc.
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Two Tone Siren Alarm Steel Padlock for Added Security
Roberta's Inc SAP-01 Heavy Duty Siren Alarm Padlock
Roberta's Inc SAP-01 Heavy Duty Siren Alarm Padlock
Roberta's Inc SAP-01 Heavy Duty Siren Alarm Padlock
Item# 81011
Price: Normally $19.99 
Hot Deal $15.00
Free shipping on orders over $175 - See Details


  • High security design made of durable steel
  • 96 - 98 dB alarm that sounds when tampered
  • Suitable for all weather conditions
  • Powered by 6 lithium batteries
  • 3 high-security cut keys

Essential Info

Keep your bike, garage door, garden shed, side gate, tool box or locker, or anything you desire secure with this Heavy Duty Siren Alarm Padlock. This lock comes equipped with two settings, Armed and Unarmed, so you can be alerted by a 96 - 98 dB alarm when the lock is tampered with. The Heavy Duty Siren Alarm Padlock has a body made of extra strong cast steel as well as a high-grade steel shackle.

Hands-On Research:
When testing this product I found that the lock by itself was worth the $19.99. Once I used the lock in both modes (armed and unarmed), I found this to be an incredible deal for the money. The lock is extremely durable and 100% secure, leaving no doubt that this is the best lock for multiple applications.

What's Included

  • 1x - Siren Alarm Padlock
  • 1x - High-grade Steel Shackle
  • 3x - High Security Cut Keys
  • More Info

    The Heavy Duty Alarm Siren Padlock couldn't be easier to operate. You can choose between Armed and Unarmed with a simple twist of the wrist. Once you decide how you want to use the lock, simply look at the shackle and place it properly in the Siren Alarm Padlock. The shackle has a notch on both ends. When you insert the shackle into the padlock, you'll hear a single beep; indicating the lock is armed. If you want to use the lock without the alarm, simply turn the shackle around and there will not be a beep.

    High Security Design
    This lock is very well designed. It has a solid steel shackle that latches into the metal padlock for maximum security. You'll be amazed with how durable this lock really is!

    Two-Tone Alarm
    This Heavy Duty Siren Alarm Padlock comes with a 96-98 decibel alarm that sounds in two tones. When tampered with, the alarm sounds for 10 seconds and then re-enter arm mode, so if the lock is tampered with again, the alarm sounds for another 10 seconds, and so on. It sounds just like a siren. Keep in mind that the lock can also be used without the alarm armed. The alarm is located at the bottom of the lock.



    Manufacturer:Roberta’s Inc.
    Manufacturer Product No.:SAP - 01
    Dimensions:4” H x 3 ¾” W x 1 ¼” D
    Weight:15 oz.
    Power:6 Lithium batteries no.A76/LR44
    Exposure:All weather
    Warranty:1 year, limited

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Roberta's Inc, Tel: (407) 421-4946


    26 Ratings
    5 star: 38%  (10)
    4 star: 27%  (7)
    3 star: 23%  (6)
    2 star: 8%  (2)
    1 star: 4%  (1)
    Average Customer Rating
    (26 customer ratings)
    Share your thoughts with other customers
    IDONGESIT D. -- sarasota, FL   7/24/2014
    A perfect piece of lock. would have given it a 5 star, but because the siren is not very loud to alert people sleeping in closed doors
    ROBERTO -- niagara falls, ON   8/8/2013
    Responds well, could be louder, uses expensive batteries
    ALEXIS PORRO -- miami, FL   2/17/2013
    A very good device, no complains, easy to handle, long lasting battery, very loud, piece of mind giver, a good thieve discouraging and deterrent if you let it sound a couple of times people will think is an original alarm from the bike. I use for my motorcycle, With excellent results always sound when disturbed, I'm happy with this great item, I'll recommend it to anybody
    CHARNY -- sechelt, BC   1/5/2013
    The alarm padlock's were a Christmas gift to someone who is really happy with them. He said they were easy to install and the alarm is loud enough to protect his cycle. Thank you also for the fast delivery and your courteous customer service.
    RICKEY -- calgary, AB   11/8/2012
    Excellent all the way.
    E. -- alexandria, VA   12/5/2010
    Loud...does the job.
    RUTHANNE -- indianapolis, IN   9/20/2010
    not loud enough. all keys are alike.
    RAG -- INDPLS IN   9/3/2010
    LYRIS -- flushing, NY   3/23/2010
    Easy to use - just put on and set and you're ready. And if you just want it to be a regular padlock, just flip and it's ready. I'd recommend this product.
    CHRISTOPHER -- bartlett, TN   1/7/2010
    I recieved this lock and was amased at how strong and well built it is. I use it on my adult 3 wheel bike to protect my investment. It is very sturdy and very easy to use, the siren is loud to get attention, there are so many other reasons to purchase one of these I will buy 3 more very soon.
    KATHERINE ALICE -- santa rosa, CA   9/22/2009
    I like the lock, but sometimes it makes a rapid-fire clicking noise even when in un-armed mode, and I wonder why that is?
    GRAHAM -- buckley, XX   3/7/2009
    good product just a shame you just have to hold the lock to drown out the siren
    FLOR -- barquisimeto, XX   2/10/2009
    It´s very strong material, very good. The alarm sounds very hight. I like it very much
    DAVE -- webster, NY   10/30/2008
    Product did not fit on a high school locker and therefore was not able to be used for our purpose.
    GEORGEANN -- garrison, NY   10/5/2008
    nice product- fast shipping - I'm a repeat customer
    MARK -- downers grove, IL   8/15/2008
    This is a very solid lock that performs as advertised. My only disappointment is that 100-105db is not really all that loud and the 10 second duration is not really long enough to deter an “opponent”. After working with the lock I’ve realized that 120db and 60 seconds would be much better. I did have one technical difficulty where the lock appeared to not alarm when I first attempted to use it. After I disassembled it, jury-rigged the alarm, and tried it, it worked fine. Then I reassembled and the same problem occurred (I discovered that that point that the alarm was working but it was just barely audible). After some experimentation, I determined that the screws that hold the bottom cover in place could not be tightened too much. A slight loosening of them allowed the alarm to work properly (yet it is still not loud enough for my taste).

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