4DV Sentinel Buy now
4DV HUB FUSION MODEL · 4 TB · 4G 4G SIM MOUNT KEY ×2
Sentinel-66 cameras · hub · 4G SIM · key
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Sentinel-6

Buy Sentinel-6.

Choose your plan
$4,000 Today, installation included · Then $49 a month

Our first batch has sold out. Join the waitlist and we'll email you as soon as the next batch is ready. Places are offered in the order people joined. There's nothing to pay now.

We'll only email you about your place.
Waitlist open
Plans

One kit. Three ways to be protected.

The $4,000 kit is the same on every plan. Monthly plans have no contract, so you can change or cancel any time.

Own

Buy it once.

$0a month

Pay for the kit and you're done. Everything runs on your hub and nothing ever leaves your site.

  • The 4D video model, on your hub
  • 30 days of encrypted recording
  • 3D playback and incident export
  • Floodlights that follow movement
  • View from anywhere over your own VPN
  • Security updates for life
Alert

Know right away.

$49a month

When Sentinel sees something wrong, your phone rings with live video, straight from your hub.

  • Everything in Own
  • Instant alerts for anything out of the ordinary, not every passing cat
  • Live video to your phone over an encrypted private tunnel. No cloud in between
  • 4G backup, so alerts still get through if someone cuts your internet
  • Share alerts with family or staff
Guard

We're watching too.

$499a month

Alerts go to our control room, staffed 24/7. A trained operator looks within seconds and decides what happens next.

  • Everything in Alert
  • 24/7 operators watch your cameras live during an alert
  • Police called with live, verified footage of what's happening
  • Response officer sent to your site
  • Drone response. A drone flies to your site in minutes and follows the intruder, filming as it goes. In launch areas
  • Operators can only see your cameras while an alert is open, and every session shows in your access log
In the box

What's included.

6
Sentinel cameras
4K and thermal sensors, weatherproof, with an 8-hour backup battery
6
Keyed quick-release mounts
For walls or poles. Unlock a camera with the key to swap or upgrade it in seconds
1
4DV Hub
Runs the 4D video model and stores 30 days of encrypted footage. Sits safely inside your building
1
4G SIM
Keeps alerts coming if your internet goes down. Data included on Alert and Guard
1
Lighting relay
Connects to up to 8 floodlights so the lights follow someone across your property
1
Installation and calibration
A 4DV engineer plans, fits and sets up the whole system. Mainland UK
1
Sentinel app
For iPhone, Android, Mac and PC. Connects straight to your hub. No account needed
Tech specs

The details.

ItemSpec
Visible sensor1/1.8" 8 MP, 4K 30 fps, 4.0 mm lens, 95° HFOV
Thermal sensorLWIR 640×512, 9 Hz, uncooled microbolometer
Low-light floor0.01 lux colour, 0 lux thermal
Video understanding4D model running on the hub. Judges events across all cameras and over time, and alerts on anything out of the ordinary
3D reconstructionBuilt from the overlapping camera views. Accurate to a few centimetres
TrackingUp to 64 people and vehicles at once, followed across every camera
Alert timeUnder 120 ms from frame to alert
4D playback30 days. Export any incident as a 3D scene you can replay
HubBuilt-in GPU, 64 GB memory, 4 TB encrypted storage, silent fanless design
ConnectivityWi-Fi 6 or Power over Ethernet. Remote viewing over your own VPN
Data uploadedNone to any cloud. On Alert and Guard, live video streams over an encrypted tunnel only while an alert is open
PowerMains powered. Cameras run 8 hours on battery in a power cut
WeatherIP67. Works from −30 °C to +55 °C
Works withFloodlights, alarm panels and the 4DV control room
ExpansionUp to 24 cameras per hub. Link several hubs across sites
Installation

Up and running in a week.

STEP 1

Plan

A 30-minute video call. Show us around with your phone and we'll plan where each camera goes.

DAY 1
STEP 2

Install

An engineer fits the cameras and the hub. It takes about a day.

DAY 5
STEP 3

Learn

Overnight, Sentinel maps your property in 3D and works out how the cameras fit together.

DAY 5
STEP 4

Go live

We set up your plan, alerts and lighting with you. You hold the only admin key.

DAY 6
FAQ

Questions? Answers.

Does it really work offline?
Yes. Unplug the internet and take out the SIM, and Sentinel keeps recording and analysing as normal. You only lose alerts and viewing from outside the building.
Can 4DV see my footage?
On Own and Alert, no. Your footage never leaves the hub except to your own phone, and we have no way in. On Guard, our operators can see your cameras only while an alert is open, and every session appears in your access log.
What happens in a power cut?
Each camera keeps recording on its own battery for up to 8 hours. When the power comes back, everything syncs to the hub automatically.
How is this different from a normal smart camera?
Most cameras alert on motion, one camera at a time. Sentinel's 4D video model watches all six cameras together and understands what people are doing over time. So it can tell a delivery from a theft, and it doesn't wake you up for a cat.
What if someone steals the hub?
They won't be able to read anything on it. Everything is encrypted, and the key never leaves the hub's security chip. Meanwhile the cameras keep recording on their own.
Can it call the police?
On Guard, yes. An operator checks the live video first, then calls the police with a description of what's happening and who's there. They can also send a response officer, or a drone where we operate one.
Can I change plan later?
Yes. Monthly plans have no contract. Move between Own, Alert and Guard any time from the app. The hardware stays the same.
What about signage and GDPR?
Sentinel comes with CCTV signage. Footage stays on your premises and you control how long it's kept. On Guard, we act as your processor under a standard data processing agreement.
Can I add more cameras later?
Yes, up to 24 per hub. New cameras set themselves up and join the existing 3D model.
Where do you install?
Installation anywhere in mainland UK is included. Elsewhere, we can ship the kit and support your own installer, or quote for a visit.