On the property, in seconds, by itself. A motorized searchlight locks on and follows them, an AI voice describes them and tells them to leave, and a 130 dB siren sounds if they stay.
Your phone gets the alert with live video. The hardware is yours, with no contract.
The AI voice warning and AI siren come with Standard and up, and every system starts with a month of AI Guard.
Compared side by side with Ring, Google Nest, Arlo, SimpliSafe, ADT, Vivint, Brinks Home and Deep Sentinel, from their own pages, October 2026. Sources
Checked against what Ring, Google Nest, Arlo, SimpliSafe, ADT, Vivint, Brinks Home and Deep Sentinel say about their own products, October 2026.
The Brain turns a motorized searchlight onto the person and keeps the beam on them as they move, with 355° of rotation and 90° of tilt. Every package with a searchlight runs on Brain Full, for full tracking.
ElsewhereThe light is a floodlight or a camera spotlight (Ring, Google Nest, Arlo, SimpliSafe), an LED ring or flashing LEDs (Deep Sentinel, Brinks Home), or Vivint's Spotlight Pro, which sweeps and strobes.
The AI speaks to the person and describes them: “You, black hoodie, get away from the car now.” No agent is on the line. On Standard and up.
ElsewhereRing's Active Warnings are a pre-set automated warning. Otherwise the voice talking to them is a live agent's: SimpliSafe's Active Guard, Ring's Virtual Security Guard or a Deep Sentinel guard.
The AI on the Brain reads what the person is doing, where, for how long and at what hour, then runs every step itself: searchlight, voice, then the 130 dB siren if they stay. Nobody has to press anything. The voice and the AI siren come with Standard and up.
ElsewhereThe automatic part is a light, a sound or a pre-set warning at the camera, or an alarm siren once a sensor trips; Arlo adds sirens and spotlights when you don't answer its alert. After that, it's you or an agent.
The Free plan records every camera 24/7 on the Brain, with 4K clips of every event, alerts, live view and rewind. Free is $0 for good, and paid plans are month to month.
ElsewhereRing and SimpliSafe record nothing without a plan, and ADT's cameras need a paid plan for cloud video. 24/7 recording is a paid extra at Ring, Google Nest (Advanced, $20) and Arlo (Ultra Secure, $49.99), and Vivint, Brinks Home and Deep Sentinel require a paid service.
Detection, recording, searchlight tracking and the siren run on the Brain at your property, so they carry on when the internet drops.
ElsewhereWithout the internet, Deep Sentinel's guard service stops, Google Nest's alerts and live video stop, and SimpliSafe's cameras need Wi-Fi.
Tap anywhere on a camera's picture and the searchlight points there. It can also sweep the property every night on a schedule.
ElsewhereAt Ring, Arlo, SimpliSafe and Vivint, the app turns a light on or off.
Also on PerimeterEye
4seconds
On the camera's own clock, 21:04:26 to 21:04:30. Nobody pressed anything: the camera saw it, the Brain judged it, and the searchlight landed on the person.
Filmed September 15, 2026. Live PerimeterEye demonstration. Real footage. Real-time autonomous detection, tracking, and deterrence.
Each company times something different: theirs are people responding to an alarm or a camera event, ours is the searchlight reaching the person.
Average
10 seconds
ADT
ADT's average response to an alarm signal in 2025, as ADT reports it.
SourceUnder
30 seconds
SimpliSafe
SimpliSafe says Active Guard agents can assess the situation and react in less than 30 seconds.
SourceTypically within
30 seconds
Deep Sentinel
Deep Sentinel says it typically responds within 30 seconds to verified threats.
SourceTwo examples from list prices on October 27, 2026, before tax and shipping, with the arithmetic shown.
Against a guard service
4 cameras on each, for 36 months. PerimeterEye answers by itself; Deep Sentinel's guard service is billed per camera, with a one-year minimum.
PerimeterEye
Defense 4 on Standard
Deep Sentinel
DS2 with 4 cameras
On AI Guard, PerimeterEye's three years come to $6,498.65: $2,999 + $99.99 × 35 months.
Against an alarm contract
ADT Complete and PerimeterEye Standard are listed at the same monthly price. ADT's installed plan runs on a 36-month contract; PerimeterEye's runs month to month, with the searchlight and the AI voice working on the property.
Leaving one? We pay your old company's cancellation fee, up to $1,000.
Examples, not quotes. Deep Sentinel: its DS2 order page (its other pages show different starting prices). ADT: its offer page; other packages and California's 24-month term differ. PerimeterEye: the Shop and the plans; the first month of AI Guard is included, so three years bill 35 months.
Six questions, answered from each company's own pages. Select a company's name for its sources.
| Question | PerimeterEye | Ring | Google Nest | Arlo | SimpliSafe | ADT | Vivint | Brinks Home | Deep Sentinel |
|---|---|---|---|---|---|---|---|---|---|
| Who answers at 2 AM | The system itself, on site | You, or a paid guard service | You | You, then agents on Smart Secure | Agents, when a camera flags someone | Agents, once a sensor trips | Agents, once a sensor trips | Agents, once a sensor trips | A remote guard |
| A motorized searchlight that follows them | Yes, 355° | Floodlight and spotlight cameras | A floodlight camera | A camera spotlight | A camera spotlight | Google Nest cameras | Spotlight Pro: sweeps and strobes | Flashing LEDs | An LED ring and floodlight |
| A voice that describes them, by itself | Yes, the AI | A pre-set warning, on Ring Pro | You talk through the camera | You talk through the camera | An agent talks, on Active Guard | You talk through Nest cameras | A whistle | Warning sounds | A guard talks; a warning sound |
| 24/7 recording on a free plan | Yes, on Free | A paid add-on, with a plan | Advanced plan, $20 | Ultra Secure, $49.99 | No recording without a plan | A paid plan, for cloud video | On the camera, with required service | Needs a 36-month contract | Sold with a paid guard service |
| Keeps working with no internet | Detects, records, tracks and sounds the siren | The alarm siren still sounds | Saves up to an hour of events | A hub keeps saving clips | The alarm uses cellular backup | The alarm uses cellular | The camera keeps recording | The alarm uses cellular backup | Guards stop; the hub records |
| No long-term contract | None | None | None | None | None | 36 months installed; do-it-yourself month to month | Month to month if the equipment is paid upfront | 36 months minimum | One-year minimum |
PerimeterEye's AI voice warning and AI siren come with Standard and up; every system starts with a month of AI Guard. A check marks an answer that meets the question.
| Company | On its own | People who answer | Your video | If the internet drops |
|---|---|---|---|---|
| PerimeterEyeAutomatic property defense | Answers in seconds, by itself. The AI judges what the person is doing; the searchlight locks on and follows them, a voice warning describes them, and the 130 dB siren sounds if they stay. | None needed. It answers on its own, day and night: nobody has to watch or step in, not even you. The alert and video still reach your phone. | 24/7 recording on the Brain in your home, on every plan, Free included. No agents watch your cameras. Paid plans add cloud AI analysis and 7 to 30 days of cloud clips. | Detection, recording, searchlight tracking and the siren keep running on the Brain. The AI voice warning resumes when the connection is back. |
| RingCameras, doorbells and Ring AlarmSources | An alert, and a recording with a plan. Floodlight Cams can light up on motion at night; you sound a camera's siren from Live View. Ring Pro adds Active Warnings, a pre-set automated warning. | Ring Pro: agents answer Ring Alarm and request emergency services. Virtual Security Guard: U.S. guards watch enrolled cameras when a person is detected in Home or Away mode, and can talk and sound the siren. | Up to 180 days of cloud history on a plan; 24/7 recording is an add-on. Local storage needs Ring Alarm Pro and 1080p cameras. Optional end-to-end encryption switches off the AI features. | The Ring Alarm siren still sounds, and cellular backup for the alarm comes with a plan. The app can't control devices. |
| Google NestCameras and doorbellsSources | Person, vehicle and animal alerts, with or without a plan. The floodlight camera turns its lights on by itself. You can talk through the camera. | Google's own alarm, Nest Secure, is discontinued. Google partners with ADT, which sells Nest devices as part of ADT's service. | Kept in Google's cloud: 30 days of events on Standard; 60 days plus 10 days of 24/7 video on Advanced. AI descriptions are made on Google's servers. | Cameras store up to an hour of events and upload them later. Alerts and live video need a working connection. |
| ArloCameras, with plans that add agentsSources | Alerts, and a spotlight that turns on at night on motion while the system is on. The siren sounds from live view or a rule you set; on Smart Secure and Ultra Secure, if you can't respond, Arlo sounds sirens and turns on spotlights. | Agents, on Smart Secure and Ultra Secure. They answer Arlo's alarm kit and take serious threats that persist: they check the video, contact you and, for very serious threats, send emergency responders. | 60 days of cloud history on every plan; 24/7 recording on up to 3 cameras with Ultra Secure. Most cameras can also record to an Arlo hub at home. | With a hub, cameras keep saving motion clips to its storage. Emergency Response needs the internet. |
| SimpliSafeAlarm kit, with live agents on camerasSources | The outdoor camera's AI spots people, and its spotlight turns on at night on motion. Recording needs a plan that includes it. | Alarm agents text and call you, and request police if they can't reach you. Active Guard: when a camera flags someone while the alarm is on, an agent views the feed and can talk, sound the siren and shine the spotlight, on up to 3 cameras. | The AI runs on the camera; recordings stay in the cloud for 30 days. During flagged events, Active Guard agents see the live feed. | The base station reaches the alarm center over cellular backup on plans that include it. Cameras need Wi-Fi. |
| ADTAlarm with agents and Google Nest camerasSources | The alarm sounds when a door, window or motion sensor trips. ADT sells Google Nest cameras, which send alerts. | Agents at six ADT centers text you to verify or cancel, call, and request emergency services. | Nest video is kept in Google's cloud; ADT Complete includes Nest Aware. Agents can view clips tied to an alarm to confirm it. | A cellular connection carries alarm signals. ADT says notifications, video and remote control need working internet and Wi-Fi. |
| VivintInstalled smart-home alarmSources | Smart Deter whistles and lights the camera's red LED ring when someone loiters. The Spotlight Pro (up to 1,800 lumens) sweeps and strobes, and turns more intense if they linger. | Agents, required with every system. They reach you through the hub or by phone, and request emergency services if there's an emergency or they can't reach you. | The Outdoor Camera Pro records 24/7 on the device, with cloud backup for key events. Vivint says it has no access to your live or stored video. | The camera keeps recording on the device; cellular backup and a battery keep the alarm connected. |
| Brinks HomeInstalled alarmSources | Outdoor cameras with Perimeter Guard flash LEDs and play warning sounds when they spot activity. The alarm sounds when a sensor trips. | Agents at its alarm center contact you to verify, then request police, fire or medical help. | AI sorts events into person, animal and vehicle; cameras can record to a microSD card. | The alarm switches to cellular backup, and Brinks says its indoor camera can keep recording. |
| Deep SentinelCameras with live guardsSources | AI on the hub flags a person and the camera's LED ring spins. An AI Deterrent can play a loud warning sound. | A live guard is assigned to the stream, speaks through the camera or sounds its siren, then contacts police and you. | Recordings are kept on the hub. Guards see your cameras when the AI flags a threat; Privacy Mode hides the cameras you choose. | The guard service stops and cameras keep recording to the hub. There is no cellular backup. |
| Company | Equipment | Plans, per month | Contract | Setup |
|---|---|---|---|---|
| PerimeterEyeAutomatic property defense | Packages from $1,399 (Lite 4: Brain Lite and 4 cameras) to $6,599 (Estate). The searchlight and siren come in packages from $2,999. You own it all. | Free $0 · Basic $9.99 · Standard $49.99 · Heavy $74.99 · AI Guard $99.99. Every system starts with a month of AI Guard. | None. Paid plans are month to month: change or cancel any time, and the system keeps running on Free. Switching from another company? Get up to $1,000 of their cancellation fee back with a 36-month plan. | Install it yourself with the included instructions, or hire an independent installer. Cameras, spotlights and sirens each run on one network cable. |
| RingCameras, doorbells and Ring AlarmSources | Cameras from $79.99. | Ring Solo $4.99 (one device) · Ring Multi $9.99 · Ring Pro $19.99 · Virtual Security Guard $99 (175 events). 24/7 recording is extra; AI features are extra on Solo and Multi. | None. Plans are monthly or yearly; Virtual Security Guard is monthly and can be canceled any time. | Do it yourself, or Ring's pro installation, starting at $129.99 per device. |
| Google NestCameras and doorbellsSources | Nest Cam Outdoor (wired) from $199.99; Nest Cam with floodlight $279.99. | Google Home Premium: Standard $10 · Advanced $20 (longer history, 24/7 video and AI summaries). | None. Monthly or yearly, and you can cancel any time. | Do it yourself in the Google Home app, or pro installation through Google's partner SafeStreets. |
| ArloCameras, with plans that add agentsSources | Pro 6 cameras list from $229.99; the alarm kit lists at $199.99. | Smart Aware $9.99 (one camera) or $19.99 (unlimited) · Smart Secure $29.99 · Ultra Secure $49.99. | None. Monthly or yearly plans renew until you cancel, with no refund for part of a period. | Do it yourself. |
| SimpliSafeAlarm kit, with live agents on camerasSources | Video Doorbell Series 2: $199.99 at launch. | Standard $22.99 · Core $32.99 (adds recording) · Pro $49.99 (Active Guard, 8 p.m. to 6 a.m.) · Pro Plus $79.99 (Active Guard, 24/7). | None, and no cancellation fees. | Do it yourself, or a technician install starting at $124.99. |
| ADTAlarm with agents and Google Nest camerasSources | Installed systems from $449; do-it-yourself from $269 (before tax). On some contracts ADT keeps ownership of the equipment. | Installed: Secure $34.99 · Smart $39.99 · Complete $49.99. Do-it-yourself: from $24.99. | 36 months for installed systems (24 in California); ending early can cost 75% of the remaining monthly charges. Do-it-yourself plans are month to month. | Professional installation, or do it yourself. |
| VivintInstalled smart-home alarmSources | HomeProtect: $199.99 with a 3-year agreement, $349.99 without. Financing runs 36 to 60 months; canceling service doesn't cancel the balance. | HomeProtect $24.99 with a 3-year agreement, $29.99 without · HomeProtect Pro (needed for the Outdoor Camera Pro) from $44.99, plus $5 per camera. | An optional 3-year agreement, or financing. Month to month when the equipment is paid upfront. | Professional installation by Vivint on every system: free with HomeProtect's 3-year agreement, $199 without. |
| Brinks HomeInstalled alarmSources | Security Starter package $449, installation included. Pay upfront or finance through Affirm. | $39.99 to $54.99 on its packages. | 36 months minimum on every purchase; canceling early means paying the remaining months in full. | Professional installation, included. |
| Deep SentinelCameras with live guardsSources | DS2: $499 with one camera, then $200 per extra camera (6 cameras: $1,499). | Guard service on its DS2 order page: $55 per camera (2 cameras $110, 6 cameras $330). | One-year minimum. | Wireless cameras: do it yourself. PoE cameras: professional installation, about $100 to $150 an hour. |
Prices as each company listed them on October 27, 2026, before tax; sales and offers change often. Plan prices are per month.
Buy the hardware once. It runs on the Free plan; paid plans add the cloud AI, month to month. Switching from another company? Get up to $1,000 of their cancellation fee back with a 36-month plan.
The AI Brain and 4K AI cameras: Brain Lite for 4, 8 or 12 cameras, Brain Full for 16.
From $1,399
See Lite
Adds active deterrence on Brain Full: tracking spotlights and sirens, up to four spotlights for big properties.
From $2,999
See Defense
The whole system: deterrence, the Access outdoor intercom and an indoor wall panel.
From $4,499
See ProThe AI voice warning and AI siren come with Standard and up, and every system starts with a month of AI Guard. On the Free plan the Brain still detects, records 24/7 and alerts, the searchlight tracks people in Maximum Security mode, and you sound the siren and aim the light from the app.
No. PerimeterEye is an automatic property defense system. The AI on the Brain decides what it is seeing and answers on the property while the person is still outside, so it doesn't wait for a door or window sensor to trip. There is nothing to arm or disarm.
In seconds. In the film on this page, the searchlight was on the person 4 seconds after they touched the car's door handle, on the camera's own clock. Live PerimeterEye demonstration. Real footage. Real-time autonomous detection, tracking, and deterrence.
No. PerimeterEye answers on the property by itself, in seconds: the searchlight locks on, the AI voice warning describes the person and tells them to leave, and the 130 dB siren sounds if they stay. Nobody watches your cameras, and the alert and live video reach your phone at the same time. The AI voice warning and AI siren come with Standard and up.
No. On the Free plan the Brain still detects people and vehicles, records 24/7, sends alerts and lets you watch live and rewind from anywhere. Paid plans add the cloud AI: written analysis, the AI voice warning and AI siren (Standard and up), daily summaries, the assistant and cloud clips. Every system starts with a month of AI Guard.
No. Paid plans are month to month: change or cancel any time from your account online, and the system keeps running on Free. The hardware is yours. Switching from another company? Get up to $1,000 of their cancellation fee back with a 36-month plan.
Detection, recording, searchlight tracking and the siren keep running on the Brain, and it switches to Wi-Fi if its network cable drops. The AI voice warning resumes when the connection is back.
No agents or guards watch them: the AI on the Brain decides and acts, and alerts come to you. Your 24/7 recording stays on the Brain in your home. On paid plans the cloud AI analyzes events, and event clips are kept in the cloud for 7 to 30 days.
Yes. PerimeterEye runs alongside an alarm you already have, and cameras you already own can join it if PerimeterEye can reach their video stream. Tell us your models and we'll check. Check my cameras
14-day returns after delivery. Opened items accepted if complete and undamaged; you pay change-of-mind return shipping. Mandatory consumer rights apply.
Verkada sells cameras, alarms and access control to organizations. Its AI-powered deterrence, announced as a public beta, plays a message the customer writes about 3 seconds after a person is detected, then up to two AI-written follow-ups. On its alarm plans, agents can talk to the person and request police, and its devices are licensed per device for 1 to 10 years. See PerimeterEye for business
Start with a package, or order with a specialist who confirms the right setup for your property first.
Every fact about another company on this page comes from the companies' own websites, plus a SimpliSafe press release, ADT's report to the SEC and, for one point about ADT's cameras, a Security.org review. All read on October 27, 2026.
Plans, prices and features change, and they vary by product and region: check with each company before you buy. Ring, Google Nest, Arlo, SimpliSafe, ADT, Vivint, Brinks Home, Deep Sentinel and Verkada are trademarks of their respective owners, named only to compare published facts. None of them is affiliated with PerimeterEye. The PerimeterEye footage on this page is a live demonstration. Real footage. Real-time autonomous detection, tracking, and deterrence.