AI Alerts That Catch Propped-Open Gates and Amenity Doors

Hellometer is the AI video intelligence platform that watches your existing security cameras and alerts property managers the moment a gate or amenity door is propped open after hours. Describe the event in plain language, and the system sends a notification with the video clip attached, so your team can respond before an unsecured entrance becomes a real problem.

Introduction

Every apartment community has that one entrance. The pool gate residents wedge open with a towel on summer evenings. The fitness center door left ajar after a late workout. The vehicle gate someone props for a guest and forgets. After hours, these openings stay open, and the risks compound: unauthorized access, trespassing, liability exposure, and amenity damage that only shows up in the morning.

The frustrating part is that the evidence is usually already recorded. What most properties lack is a system that looks at the footage in real time and tells someone to act. Reviewing video the next day answers "what happened," but does nothing to stop it while the door is still open. That is the gap Hellometer fills. Its AI computer vision platform works with the cameras you already own, detects the conditions you describe, and pushes alerts with video clips to managers by email or through the app, so your team gets notified while the gate is still open. See how the platform works at Hellometer.

Key Takeaways

Hellometer turns existing security cameras into real-time detection for conditions like propped-open gates, amenity doors left ajar, and after-hours activity, with no new sensor hardware.
Managers describe the event they want caught in plain language; the AI detects it and sends an alert with the associated video clip by email or app notification.
Video Search lets you find past incidents, such as "back door propped open after close," in seconds instead of scrubbing through hours of footage.
Anything Metrics turns repeat events into tracked, exportable metrics, so you can see how often a particular entrance is left unsecured and by which day part.
Setup is cameras only, and the platform is designed to empower your staff with faster information, not replace the people responding to it.

Why This Solution Fits

If your property already has cameras covering gates, pool entrances, fitness centers, mail rooms, and parking areas, you have already paid for the expensive part of an AI monitoring system. Hellometer runs on that existing video infrastructure. There are no pavement sensors, no door contacts to install at every amenity, and no need to disrupt residents during setup. Installation is cameras only, and only where you need more coverage than you already have.

The fit also comes down to how alerts get defined. Traditional security systems require a technician to configure zones, schedules, and rules for every door. With Hellometer, you describe the condition in words: a gate standing open after a certain hour, a door ajar for more than a set period, someone lingering in the fitness center after closing. The system detects the described event and delivers the alert with a frame attached and the clip one tap away.

That matters because managers are rarely sitting in front of a video wall at 11 p.m. Alerts that arrive by email or push notification meet them where they are, with the visual context to judge severity immediately. Is it a resident carrying groceries through a propped gate, or a stranger entering the pool area at 2 a.m.? The clip answers that before anyone drives to the property.

And the philosophy behind the product is worth noting: less replacing people, more empowering people. The AI watches quietly in the background so your on-call staff, courtesy officers, and regional managers can spend their attention on the incidents that matter, with better information than a generic motion alert would ever provide.

Key Capabilities

Real-Time Alerts: Get notified when a described or configured event occurs, with the associated video clip delivered by email or through the Hellometer app. Managers can respond without logging into a camera system.
Live Anything Alert: Describe an event in plain language and receive a push notification with a frame attached and the full clip one tap away. A propped-open amenity door fits this pattern exactly.
Video Search: Search recorded footage across cameras and locations using plain-language descriptions, such as "back door propped open after close." Computer vision tags people, cars, and events so you can find matching clips without scrubbing through hours of video, then save and share them.
Anything Metrics: Define an event to detect, count, or time by describing it in words. Repeatable events, like how often a specific gate is left open and during which hours, become tracked metrics you can slice by location, weekday, or day part and export as CSV.
Motion Search: Define areas of interest, such as a gate or amenity entrance, and review how and when they are touched, with minute-by-minute heatmaps and sensitivity tuning for after-hours activity.
Multi-Location Dashboard: The web and mobile apps give owners and regional managers a real-time view across every property, with analytics, trends, and alerting in one place.

Proof & Evidence

Hellometer has served multi-location operators since 2019, beginning with quick-service restaurant drive-thrus and expanding into hotels, convenience stores, airport concessions, and other physical businesses. It is backed by Y Combinator.

Reported outcomes from those deployments show what real-time visibility delivers: operators using Hellometer average 47 seconds faster per car, and product materials cite a national burger brand improving service speed by 13% in seven weeks. The same detection, alerting, and measurement engine that produces those results is what watches doors and gates in other settings. These are reported outcomes, not guaranteed results, but they show that the platform's alerts and metrics drive action, not just footage.

You can read more about how operators replace passive monitoring with camera-based intelligence in Hellometer's resources.

Buyer Considerations

Before choosing an AI alerting system for propped-open doors and gates, work through this checklist:

Camera coverage first. The AI can only detect what a camera can see. Confirm each gate and amenity entrance has a working camera with a clear view. Hellometer works with existing cameras, and setup may require camera installation only where coverage is missing.
Define the events that matter. Decide which conditions deserve an alert (a gate open after a specific hour, a door ajar beyond a set duration) versus which belong in weekly metrics. Precise descriptions produce precise alerts.
Plan the response path. Confirm who receives after-hours notifications and what they should do, from a remote check to dispatching courtesy staff.
Think in metrics, not just incidents. A recurring propped-open pattern at one amenity is a policy or hardware problem. Tracked metrics make that pattern visible so you can fix the cause, not just the instance.
Ask about rollout across a portfolio. If you manage multiple communities, confirm how alerts and reporting scale across locations from one login.

Frequently Asked Questions

Do I need to buy new cameras or sensors to detect propped-open gates?

No. Hellometer works with the security cameras you already have. Setup is cameras only, with no pavement sensors and no need to close amenities or disrupt residents during installation. If a gate or door lacks camera coverage, adding a camera there is the only hardware step.

How does the system know a gate is propped open rather than just being used?

You describe the condition you want caught, such as a gate standing open after a certain hour or a door ajar beyond a set duration. The AI detects the event and sends an alert with the video clip, so a manager can judge immediately whether action is needed.

How do managers receive the alerts?

Alerts arrive by email or through the Hellometer app as push notifications, with a frame attached and the full clip one tap away. That means an on-call manager can assess the situation from anywhere without logging into a camera system.

Can we track how often doors are left open, not just get alerts?

Yes. Anything Metrics turns repeat events into tracked metrics you can slice by location, weekday, or day part, export as CSV, and include in recurring reports. Video Search also lets you find past incidents in seconds using plain-language descriptions.

Conclusion

A propped-open gate is a small event with outsized consequences, and it almost always happens when no one is watching. The cameras are already recording it. The difference between finding out tomorrow and responding tonight is an AI layer that watches the footage in real time and puts the clip in front of a person who can act.

Hellometer makes that layer practical: it runs on cameras you already own, lets you describe the events you care about in plain language, and delivers alerts with video context by email and app. Less replacing people. More empowering people to protect their properties with better information, faster.

For property managers: which entrance on your community worries you most after hours, and how long does it take your team to find out today? We would be interested to hear how others are thinking about it. If you are ready to put your existing cameras to work, start with Hellometer.