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The simple, human fact that we want to protect our homes and our belongings is why video doorbells have become so commonplace. But while they can certainly deter opportunists, their real value is in providing evidence after the fact.
That is, unless you opt for the Arlo 2K Video Doorbell (which is currently on offer for just $49.99), as its siren feature can actively deter intruders, alongside the usual benefits of a video doorbell.
This active deterrent makes the Arlo 2K one of the best video doorbells on the market, and if you're considering investing in your home security, you'll be happy to hear that I've never seen it discounted by this much.
Arlo 2K Video Doorbell | was $129.99, now $49.99 at Arlo (save $80)
With a siren that actively stops intruders in their tracks, paired with crisp 2K picture quality and clear audio, the Arlo 2K Video Doorbell is a strong all-round home security upgrade, at its lowest price ever.
Read more in our full Arlo 2K Video Doorbell review.
The Arlo 2K Video Doorbell Helps to Proactively Protect Your Home
The Arlo 2K is sleek, compact, and easy to mount.
Video doorbells already do a lot to secure our homes. The presence of a camera (and often a night light) creates the psychological experience of being seen, which can be enough of a deterrent to ward off potential opportunists.
But for those who are more prepared – such as porch pirates who know to cover their face – a camera can easily be ignored. That's why the Arlo 2K Video Doorbell's siren feature deters intruders more proactively.
'The siren adds an active deterrent to a usually passive device,' shares Gene Petrino, lead advisor for Security.org. 'A standard doorbell camera only records the theft after it happens. A siren interrupts the thief in the moment, draws attention, and forces them to abandon the package quickly.
'Video alone relies on the thief being afraid of being recorded. Many aren’t. They cover their faces, move fast, and don’t care about footage. A siren is different: It creates pressure, noise, and unpredictability.'
This is why we've ranked the Arlo 2K Video Doorbell so highly as an anti-intruder home security tip. And to be able to grab one for just $49.99 – which is cheaper than our best budget video doorbell – that is a tiny cost considering the long-term peace of mind it can bring.
The siren can be made loud enough for neighbors to hear – just let them know in advance what the sound means – and you can also set it to activate automatically or manually, in case you're worried about it accidentally turning on while you're on vacation. You'll still get the alert and, if the person at the door looks unfamiliar, you can turn it on.
Outside of the siren feature and current rare low price, the Arlo 2K Video Doorbell also has a lot of other great selling points. For example, its 2K HDR resolution delivers clear footage, making it easy to see exactly who’s at your door and what’s been left behind, even at night.
In our full Arlo 2K Video Doorbell review, this clarity, paired with a 180-degree field of view, proved genuinely useful. Parcels were clearly visible in frame, faces were easy to identify, and nighttime footage was sharp enough to check delivery details.
It also has two-way audio that's clear in different weather conditions, and the Arlo app is very straightforward to use, not requiring much tech know-how to wrap your head around. All that's required is a little bit of patience and a screwdriver to mount it outside (or a drill, if mounting on brick).
So if you've been waiting for the right moment to invest in your home security, an easy-to-use video doorbell that proactively deters intruders for just $49.99 might be the perfect moment.
The Arlo 2K Video Doorbell is discounted to $49.99 for a limited time.
More to Shop
This Entry Sensor is a simple, inexpensive security step that will protect against intruders, sounding an alarm if there's ever forced entry to your property. You get more features in tandem with a eufy doorbell like the eufy E340, which is our favorite subscription-free video doorbell – but it works by itself, too.
Like the Arlo, the Lorex 2K Video Doorbell comes with a built-in siren, and it doesn't require a subscription. It's also available in black, a more muted design that won't stand out as much on darker porches.
If you already own a Ring doorbell and don't fancy switching, you can upgrade your security setup with this alarm kit, that can sound alarms and give you alerts from multiple points throughout your home.
Next, learn more ways to improve your home security without a security system.

Dan is the Home Tech Editor for Homes & Gardens, covering all things cleaning, sound, smart home, and air treatment across the Solved section.
Having worked for Future PLC since July 2023, Dan was previously the Features Editor for Top Ten Reviews and looked after the wide variety of home and outdoor content across the site, but their writing about homes, gardens, tech and products started back in 2021 on brands like BBC Science Focus, YourHomeStyle and Gardens Illustrated.
They have spent more than 400 hours testing and reviewing vacuums, soundbars and air purifiers for Homes & Gardens.
Dan has a BA in Philosophy and an MA in Magazine Journalism. Outside of work, you'll find them at gigs and art galleries, cycling somewhere scenic, or cooking up something good in the kitchen.
