K-12 School Safety

Weapons Detection Systems for Schools AI Gun Detection for Schools, What It Actually Costs Per Camera, and How to Choose One

Two very different products get sold to schools under the same name. One is an entrance screening portal a student walks through, which finds concealed weapons at a door. The other is AI that watches the cameras your district already owns and flags a visible firearm anywhere on campus. They cost different amounts, they catch different things, and a rep will not always tell you which one you are buying. This page is explicit, including where our software falls short.

Last updated July 2026

Start Free Trial See the Real Cost Numbers

Runs on any ONVIF or RTSP camera already installed. Visible-weapon alerts plus intrusion, loitering, vehicles, plates, and plain-English video search.

The numbers at a glance

Cameras in public schools: 93%
AI gun detection, small district: ~$592/cam/yr
AI gun detection, large district: ~$168/cam/yr
FY26 federal SVPP pool: Up to $73M
Detects concealed guns?: No camera can

In short

A weapons detection system for a school is either an entrance screening device that scans bodies for concealed weapons at a doorway, or camera-based AI that flags a visible firearm on the cameras a district already owns. Screening finds hidden guns at the doors it covers. Camera AI finds a drawn gun anywhere a camera looks, at a lower per-camera cost, but it cannot see a weapon in a backpack. Published AI gun detection contracts run from roughly $592 per camera per year at a small district down to about $168 at a large one, and federal STOP School Violence grants can cover the bill.

What districts actually paid, from signed contracts

AI Gun Detection Costs Far Less Per Camera at a Large District Than a Small One

Almost every "how much does AI gun detection cost" article gives you a single number, which is useless, because the number that matters is per camera and it moves with how many cameras you run. Publicly reported school district contracts show a clear curve. A small district running fewer than 40 cameras has paid on the order of $592 per camera per year. A mid-size district at around 116 cameras came in near $330. Large districts running 650 to 800 cameras have signed at roughly $168 per camera per year.

That curve is the single most important thing to understand before you take a quote. If a vendor prices a 40-camera pilot and you extrapolate straight to your 700-camera district, you will overestimate badly. If you price the whole district up front, your per-camera cost drops by more than half. Ask every vendor for their per-camera rate at your actual camera count, not a pilot count.

Here is the concession most vendor pages bury. Our platform is $39 to $42 per camera per month, which is about $468 to $504 per camera per year. At a large district, that is more per camera than a dedicated AI gun detection contract. We charge more because you are not buying a single-purpose gun detector. The same subscription runs intrusion detection, loitering, vehicle and license plate recognition, crowd formation alerts, and plain-English search across your recorded footage. If all you want is a visible-firearm alert and nothing else, a single-purpose vendor may be cheaper at scale. If you want one system that also covers the parking lots, the after-hours intrusions, and the post-incident review, the math changes.

Claims we will not print

That our software, or any camera, detects a concealed weapon in a backpack or waistband.
A published accuracy percentage we cannot source, since the honest vendors do not publish one either.
A single flat price for AI gun detection, because per-camera cost depends on your camera count.
That any camera system satisfies a state screening mandate written for entrance portals.

Entrance Screening vs Camera Gun Detection: the Honest Comparison

These are not competitors so much as two halves of a plan. They fail in opposite places, which is why larger districts run both. We sell the right-hand column, and the table concedes every row where the left-hand column wins.

Dimension	Entrance screening (Evolv, CEIA, Garrett, OpenGate)	Camera AI (Surveillant, ZeroEyes, Omnilert)
Concealed weapons	Yes. Finding a hidden gun at the door is the whole point.	No. A gun in a backpack or waistband has no visual signature.
Coverage area	The doors you put a lane at. Nothing past the portal.	Every camera on campus, hallways, gyms, lots, and perimeter.
Parking lots and athletic fields	Not covered unless you build a screening lane there.	Covered wherever a camera already looks.
Detects a drawn gun in a hallway	No. Screening already happened at the entrance.	Yes, that is the primary use case.
Throughput at arrival	Adds a queue at the door during morning entry.	Invisible to students. No lines, no bins.
Staffing burden	High. Staffed lanes during every arrival and event.	None added. Alerts route to the SRO, front office, or phones.
Capital cost	Portal hardware per lane plus staffing, often five figures per door.	Software on existing cameras. No new hardware to buy.
Per-camera or per-student cost	Priced per lane and per deployment, rarely published.	Published: $39 to $42 per camera per month.
Works at night and after hours	Only when the entrance and its staff are active.	Runs 24/7 on every camera, including empty-building intrusion.
Best at	Stopping a concealed weapon from entering at a controlled door.	Seeing a drawn weapon across the 95% of campus with no lane.

Vendor names describe device categories, not any relationship. Entrance screening pricing is mostly unpublished. For the one school deployment cost on the public record, see our breakdown of Evolv Express pricing from a signed district RFP and the fuller Evolv Express review.

The Federal Grants That Pay for School Weapons Detection

Most districts do not pay for this out of the operating budget. The largest recurring source is the STOP School Violence Act, which the Department of Justice funds at roughly $125 million a year. Within it, the COPS School Violence Prevention Program is the one that pays for detection and notification technology.

For fiscal year 2026, the COPS Office made up to $73 million available through the SVPP, planning around 200 awards. Each standard award runs up to $500,000 in federal share over 36 months, with a local cost share of at least 25 percent in cash. There are also at least ten microgrants of up to $100,000 with no local match, which are the realistic path for a small district. The FY2026 application windows closed in early August 2026, so the practical move now is to build your project for the next cycle.

One caution worth knowing before you write the application. SVPP funds technology, threat assessment, training, and coordination with law enforcement. It does not fund weapons, armed personnel, or ongoing salaries. A software subscription that flags threats and speeds notification fits the program cleanly. A line item for a school resource officer does not.

FY2026 COPS SVPP at a glance

Total pool: Up to $73M
Planned awards: ~200
Max federal share: $500,000 / 36 mo
Local cost share: At least 25% cash
No-match microgrants: Up to $100,000

Figures from the COPS Office FY2026 SVPP funding notice. Confirm current amounts and deadlines at cops.usdoj.gov/svpp before you apply.

What Camera AI Catches on a School Campus, and What It Cannot

The honest limit first: no visible-light camera detects a concealed weapon. A gun in a backpack, a waistband, or under a hoodie produces nothing for the model to see, and that is true for us, ZeroEyes, Omnilert, and every other camera-based vendor. Anyone selling a camera that finds hidden guns is overselling. Detecting a concealed weapon requires physical or electromagnetic screening at a controlled door.

What camera AI does well is the moment a weapon becomes visible, and everything around it. Nearly all public schools already run cameras, 93 percent of them according to federal survey data, and those feeds mostly sit unwatched. Human attention on static video falls apart within about 20 minutes. Software watching every feed for a drawn firearm, an after-hours intruder, a car circling the lot, or a crowd forming is filling the gap between the cameras you paid for and the staff you do not have to watch them.

For a district weighing where a screening lane belongs versus where camera coverage is enough, the practical read is that screening earns its cost at a single high-traffic entrance, while camera AI earns its cost everywhere else. Districts that layer analytics onto their existing school cameras tend to get more coverage per dollar than districts that try to screen every door.

What our software flags on school cameras

Visible firearm held or drawn in view of any camera, indoors or out. Not concealed, and we do not claim otherwise.
After-hours intrusion in a building, gym, or portable classroom when campus should be empty.
Loitering and vehicle dwell in parking lots, at pickup lines, and along the perimeter fence.
Crowd formation in a hallway or courtyard, often the earliest sign of a fight escalating.
License plates at every entrance and exit, searchable after an incident.
Plain-English search across recorded footage, so a review takes minutes instead of an afternoon of scrubbing.

Runs on the ONVIF and RTSP cameras already mounted. Nothing to rip out, nothing to re-cable.

How to Choose a School Weapons Detection System

Four steps that keep a district procurement honest, in the order they actually matter.

01

Decide what you are actually buying

Write the requirement as two lines: concealed-weapon screening at one or two named entrances, and camera analytics for the rest of campus. Vendors who sell one will bid on both. Splitting the requirement stops a screening rep from selling you a whole-campus promise their box cannot keep.

02

Get the per-camera rate at your count

AI gun detection pricing drops sharply with camera count, from roughly $592 per camera per year at a small district to about $168 at a large one. A pilot quote is not your real number. Ask every vendor for the rate at your full camera count, in writing.

03

Ask about the SAFETY Act designation

The DHS SAFETY Act gives approved anti-terrorism technologies a liability shield, which matters for public-sector procurement. Among AI gun detection vendors, only ZeroEyes and Omnilert hold a full designation. It is not a performance benchmark, but it is a real procurement and liability fact worth asking about.

04

Ask what happens after the alert

Who verifies the detection, in how many seconds, and how does it reach an SRO, the front office, and law enforcement? A detection with no verified human response and no route into your notification or lockdown workflow is an alert nobody acts on.

School Weapons Detection Questions

What are weapons detection systems for schools?

They come in two forms. Entrance screening scans a person's body for concealed weapons as they walk through a portal at a school door. Camera-based AI runs on existing school cameras and flags a visible firearm anywhere the cameras can see. Screening finds hidden guns at a controlled door, camera AI finds a drawn gun across the whole campus, and neither replaces the other.

How much do weapons detection systems for schools cost?

For AI gun detection, signed district contracts show roughly $592 per camera per year at a small district under 40 cameras, about $330 near 116 cameras, and around $168 per camera per year at large districts running 650 to 800 cameras. The per-camera cost falls sharply as camera count rises, so always ask for the rate at your actual count.

What is the best weapons detection system for schools?

There is no single best system, because entrance screening and camera AI solve different problems. Screening at a main entrance stops concealed weapons at that door. Camera AI covers hallways, lots, and after-hours intrusion that screening never touches. Most districts that can afford it run a screening lane at one entrance and camera analytics everywhere else.

Can school security cameras detect concealed weapons?

No. A firearm in a backpack, waistband, or under clothing has no visual signature, so no visible-light camera can detect it. This is true for every camera-based vendor, including us, ZeroEyes, and Omnilert. Camera AI detects a weapon only once it is visible. Detecting a concealed weapon requires physical or electromagnetic screening at a controlled entrance.

Are there grants for school weapons detection systems?

Yes. The federal STOP School Violence Act funds roughly $125 million a year, and its COPS School Violence Prevention Program pays for detection and notification technology. FY2026 offered up to $73 million across about 200 awards, up to $500,000 each over 36 months with a 25 percent local match, plus no-match microgrants up to $100,000. Many states run their own school safety grants too.

How is AI gun detection different from metal detectors in schools?

A metal detector or screening portal finds concealed metal at one doorway as people pass through, which adds a line and staff but catches hidden weapons. AI gun detection watches your existing cameras for a visible gun anywhere on campus, adds no lines, but cannot see a concealed weapon. One controls a door, the other watches everything the cameras see.

Does the DHS SAFETY Act matter for school weapons detection?

It can. The SAFETY Act gives approved anti-terrorism technologies a liability shield, which is a genuine procurement consideration for public schools. Among AI gun detection vendors, only ZeroEyes and Omnilert currently hold a full designation. It is a liability and procurement fact, not a published accuracy benchmark, so treat it as one factor among several.

Does AI gun detection work at night and after school hours?

Yes. Camera-based analytics run continuously on every feed, so they cover after-hours intrusion, athletic events, and empty-building alerts that entrance screening cannot, since screening only works when the door and its staff are active. This 24/7 coverage of an empty or lightly staffed campus is one of the clearest advantages camera AI has over portal screening.

How many cameras does a school need for AI gun detection?

You do not add cameras for it. AI gun detection runs on the ONVIF or RTSP cameras a school already owns, and 93 percent of public schools already have cameras. Coverage matters more than count: prioritize entrances, main hallways, the cafeteria, gyms, and parking lots. Because pricing is per camera, you can start with the highest-risk areas and expand.

Cover the Campus a Screening Lane Cannot See

Surveillant runs visible-weapon, person, vehicle, intrusion, and license plate detection on the ONVIF and RTSP cameras your district already owns, at a published $39 to $42 per camera per month, with a free plan for one camera. Point it at your worst parking-lot camera first.

Start Free Trial View Pricing

No credit card required. Nothing here is legal or grant advice; confirm current grant terms with the COPS Office and your obligations with counsel.