This alarm is very loud, highly-rated, and reliable.

It is also waterproof, strong, and durable, making it a perfect option. 

You can purchase this product from bike shops, certain hardware stores, and online.

Review

This is a super loud alarm. If the lock is broken or disassembled, the alarm will emit a deafening 130dB siren.

It will also be triggered if the cable of the lock is clipped or if it registers any vibrations. 

This lock is also very strong and durable. 

The lock is made of stainless steel and is secured with a 14mm Quattro-locking, carbide-reinforced hardened-steel locking pin.

The entire alarm lock is waterproof and can operate in temperatures ranging from 14 to 140 degrees Fahrenheit.

Batteries (CR2 ), which are initially included, can last up to a year.

The premium holder of this lock is adjustable.

The bracket of the product is suitable for a bicycle ellipse frame tubing from 1.5 inches to 3 inches.

One of the only downfalls of this alarm lock is its price.

Out of the three products, it is the second most expensive.

Review

This lock has a 100bB intelligent alarm with corrosion resistant 5mm foldable steel bars made of special hardened steel.

As with all locks it must come into contact with your bike frame so it has a soft touch coating on the bars and a silicone cover on the main body which will protect your bike from accidental scratches.

It comes with two keys and Abus’s Plus cylinder which allows you to re-use the same keys with other Abus locks, although you have to get them set up for you with Abus.

The lock itself is rated 10/15 for security by Abus which isn’t bad on its own but independent tests by Sold Secure gives it a disappointing Sold Secure Bronze rating. 

The lock was once given a Sold Secure Silver rating but has since been downgraded.

At the price we’re talking about here this shouldn’t be used as your primary lock especially if your bike is expensive and your pride and joy.  

While the alarm may go some way to protecting your bike I would question the wisdom of using this lock as your only lock.

The lock is a thing of beauty. It shares its looks with other foldable locks but I love the innovation and thought that has gone into this.

I love the simplicity and, yes, the weightiness of the lock, quite hefty at 3.4 lbs.

It comes with a lock holder which can be either screwed to your frame or it comes with Velcro fixings.  

Either way works just as well but a thinner frame might struggle to hold with the Velcro.

There are two settings for the lock.

The first, you can lock your bike without using the alarm. Just unfold the lock and secure it to a bike post or similar.

This vlock is flexible as you’d expect with a good reach around.

The second setting is for the alarm, you click the last bar into the head, turn the key to lock and at once you get an audible beeping to tell you the alarm is being set.

This is where the clever bit starts. 

Once the alarm is set it will detect a minor disturbance and let you know with a similar set of beeping as when it was being set. That’s your warning. 

Obviously, if you knock another bike while setting up your own you don’t want to set off that bike alarm.  

If the lock determines that this is a serious attempt to break into the lock with its 3D position detection technology or it finds that someone is trying to pick the lock then all hell breaks loose and a 100dB chorus will fill your ears.  

This will continue until either the key is inserted and turned or the battery runs out.

The alarm uses a CR2 battery which will last about 3 months under normal circumstances. 

You’ll get an audible notice if this needs replacing. 

Replacing that battery is simple enough, you just need to get to it under the silicon head cover.

Would I recommend this lock? Well it is beautiful, interesting and innovative but also not as secure as I would like for the price.

It’s on the higher cost side of the locking world and I would expect it to be more capable for that price.  

That said, the alarm part of the lock isn’t part of the Sold Secure test and you could argue this makes the difference. 

However, for the price and security it gives me I think there are cheaper options.

It has a Sold Secure Silver rating which is better than the more expensive Bordo 6000A reviewed above.

The name of the lock is a bit strange, i.e. Abus Unisex, but if you can get over that then we can get down to the important part which is how the lock works as an alarmed bike lock.

The shackle is made of 12mm hardened steel as well as the housing and supporting bits of the locking mechanism.

You lock it like any U Lock and once set the alarm will give you a polite 15 second 100dB warning if the lock is disturbed. 

If it lays undisturbed at that point it will reset.  

If a thief is continuing to have a go the lock’s 3D positional technology comes into play and knows when the lock is being moved around. Once the alarm goes off it won’t stop until the key is used.

The lock uses CR2 batteries

This is a good looking, capable, lock and can’t be considered second class to the more expensive Bordo 6000A.

In my view this is a winner.  

Forget about the Unisex title of the lock.  

This is a decent bike lock whether alarmed or not.

Review

You can also give others access to the lock via their own mobile phone.

That's under your control so you can give temporary or permanent access to your lock. 

This is up to you and controlled via the Abus SmartX app on your mobile phone. 

This can be really useful if you need lend out your bike to your other half or a friend.

Are you ready for a keyless bike lock? Trust in the product is essential.  

Abus have a reputation to uphold so I have no doubt this system works.  

I do worry about losing power to the lock so I think you would need to be disciplined in charging it regularly. 

A keyless bike lock also has no lock picking entry point so this can only be a positive. 

The U bar is made of 13mm hardened steel and the lock itself is certified as Sold Secure Gold which is a mark if a very secure lock.

So would I buy this lock? It is certainly a very good lock even without the alarm.

If I could justify the cost and overcome any hesitancy with it being a keyless system then this is a great option.

Have you decided on whether you're in the market for an alarm only system or a bike lock?

If you are searching for a decent bike alarm lock, the three very good options to choose from including the Onvian 2 in 1 Smart Bike Tail Light, Wsdcam Bike Lock Alarm, and the Wsdcam Wireless Anti-theft Bike Alarm are all solid options.

The decibel levels are all comparable to each other and all have some sensitivity detection.  

I have to say I do like the Onvian.

Its dual nature as an alarm and a rear light with some clever features win this one for me.

Each product has its own features, pros, and cons.

The Wsdcam Wireless Anti-theft Bike Alarm is cheaper than the other two alarms.

However, the Crystal Vision SHBLA Anti-theft Bike Alarm emits the loudest sound, which can be crucial in the event of someone trying to steal your property.

The Wsdcam Bike Lock Alarm has the softest alarm, but it is also the strongest and most durable lock.

Considering all the features and pricing, the best option for most people would probably be the Crystal Vision SHBLA Anti-theft Bike Alarm.

It is not the most expensive alarm, but it is also not the cheapest. 

It emits the loudest alarm (130dB) and is waterproof, long-lasting, strong, durable, and reliable.

As for bike lock alarms, there are two winners here for me.

The Abus Unisex - Adult 440A/150HB160 and the Abus 770A SmartX Keyless U-Lock. 

Cost wise the Abus Unisex wins.  

It's a good all rounder; it's a solid lock with medium theft protection.

The alarm is sensitive enough to work effectively. 

The Abus 770A is the winner purely on security grounds. 

It's got a Solid Secure Gold rating Plus the alarm.  

The only potential downside is that it's a keyless system. 

My recommendation then for a solid bike lock alarm is for the The Abus Unisex - Adult 440A/150HB160.