Walk Through Metal Detector Brands: 6 Compared Honestly (2026)

The walk through metal detector brands that dominate commercial security are Garrett, CEIA, Evolv, Rapiscan, ZKTeco, and 2M Technology — and they are not interchangeable. The right choice depends on three things: whether you need NIJ-certified discrimination (courthouses, jails), weatherproofing for outdoor gates (stadiums, construction sites), or high-throughput screening on a school budget. This guide compares all six honestly — and 2M Technology can, because we sell and install walk-through units alongside x-ray scanners every week for courthouses, schools, and event venues, so we see exactly where each brand earns its price and where it doesn’t.

Walk Through Metal Detector Brands at a Glance

1. Garrett PD 6500i — the incumbent standard

Ask any courthouse security director to name a walk-through unit and the Garrett PD 6500i is usually the first answer. Its 33-zone detection pinpoints where on the body a metal object sits, it meets the NIJ 0601.02 standard for law-enforcement metal detection, and it carries IP55/IP65 environmental ratings. You’re paying for the track record: thousands of installed units at airports and government buildings mean predictable performance and easy operator hiring — most experienced screeners have already used one. The tradeoff is price-per-zone; newer multi-zone designs deliver more zones for less money.

2. CEIA SMD600 Plus — the discrimination leader

The CEIA SMD600 Plus is what high-security facilities buy when false alarms are more expensive than hardware. Its 60 dual-side zones with height indication, combined with CEIA’s magnetic-composition analysis, let it flag low-metal-content weapons while passing belts, keys, and shoe shanks — which is why it’s NIJ-0601.02 compliant across all security levels, including inmate screening in corrections settings. The IP66 anti-vandal panel housing survives environments that would destroy lighter units. It’s typically the most expensive conventional detector on this list, and that’s the point: you buy CEIA when the cost of a missed ceramic-handled blade or a 40% nuisance-alarm rate exceeds the hardware premium.

3. Evolv Express — high throughput, verified caveats

Evolv Express replaced the single-file walk-through with an AI-sensor gateway people stream through without emptying pockets — genuinely faster at stadium scale, which is why it spread to arenas and over 800 schools. But this is the one brand where due diligence is mandatory: in November 2024 the FTC took action against Evolv for overstating what the system detects, citing among other things a seven-inch knife that passed through undetected before a school stabbing. The settlement barred unsupported AI-detection claims and let certain K-12 customers cancel multi-year contracts. Evolv can still be the right tool for high-volume venues — but buy it on tested detection performance for the specific threat items you care about, not on marketing, and budget for the recurring subscription that conventional detectors don’t carry.

4. Rapiscan — the checkpoint-ecosystem play

Rapiscan is best known for x-ray screening lines at transport hubs, and its walk-through detectors are usually bought as part of that ecosystem — one vendor, one service contract, one operator interface family across the checkpoint. If your facility is already running Rapiscan baggage x-ray, adding its walk-through units simplifies procurement. If you’re not, there’s rarely a standalone reason to start here over Garrett or CEIA at the same tier.

5. ZKTeco — the budget tier

ZKTeco and similar import brands own the bottom of the market: functional multi-zone detection at a fraction of Garrett/CEIA pricing. For an indoor lobby with light daily traffic and a guard who just needs a general alarm, they do the job. The compromises show up over time — coarser discrimination (more nuisance alarms from phones and belts), lighter housings, and thinner US service networks, which matters the first time a unit fails the morning of a big event. Budget buyers with outdoor gates or high daily cycles usually end up replacing these sooner than planned.

6. 2M Technology 2MWT series — zones-per-dollar with an integrator attached

Our own 2MWT walk-through line spans 18, 24, 45, and 90-zone models, in indoor and outdoor-rated builds — the flagship 2MWT-O90Z is a 90-zone, IP65 weatherproof unit built for stadium gates, construction entrances, and other exposed locations where most competitors require a canopy. The lineup also includes portable fold-and-deploy models for event companies and combined temperature + metal detection gates. The honest positioning: we won’t claim the Garrett name recognition or CEIA’s corrections-grade discrimination pedigree. What we offer is more detection zones per dollar, outdoor ratings as standard rather than an upcharge, and the thing the big brands don’t ship in the box — a Texas-licensed integrator (B15309) who installs it, calibrates it for your entrance, trains your staff, and answers the phone afterward.

How to Choose: Three Questions That Decide It

1. Is this checkpoint governed by a certification requirement? Courthouses, jails, and some government facilities specify NIJ-0601.02 compliance in procurement. If your RFP names the standard, you’re choosing between Garrett and CEIA tiers — this is also where our x-ray vs metal detector comparison for government buildings helps decide what belongs at each lane.

2. Is the entrance outdoors? Rain, dust, and temperature swings kill indoor-rated units. If the checkpoint is a stadium gate, fairground entrance, or construction site, filter the list to IP65+ rated hardware first (CEIA’s IP66 panels, Garrett’s IP65 configurations, 2M’s outdoor 2MWT-O series) and only then compare zones and price.

3. What does a missed item actually cost you? A school screening for weapons has a different risk profile than a warehouse screening for product theft. High-consequence screening justifies CEIA-tier discrimination; throughput-first venues weigh Evolv’s flow against its verified detection caveats; theft deterrence at an employee exit is well served by mid-tier multi-zone units. For school deployments specifically, our metal detectors for schools guide covers lane counts and funding sources.

Walk Through Metal Detector Brands: FAQs

Which walk through metal detector brand do airports use?

US airports and federal checkpoints have historically standardized on Garrett (notably the PD 6500i) and CEIA units, both of which meet the NIJ 0601.02 standard. That heritage is why those two brands anchor most government procurement lists.

What do detection zones actually mean?

Zones divide the archway into a grid so the alarm tells the operator where the metal is — left ankle vs. right chest pocket — instead of just beeping. More zones mean faster secondary checks: a 90-zone unit points a wand operator to a hand-sized area, while a basic 6-zone unit only narrows it to a body region.

How much does a commercial walk through metal detector cost?

Entry-level import units start around a few thousand dollars; mid-tier multi-zone units (including 2M’s 2MWT line) are quote-based by configuration; and Garrett/CEIA flagship units command premium pricing on top of which Evolv-style systems add annual subscription fees. Request pricing against your specific lane count and throughput rather than list prices — installation, calibration, and training change the real total.

Can walk through metal detectors be used outdoors?

Only units built for it. Look for an IP65 or IP66 ingress rating — that’s dust-tight with water-jet protection. 2M’s 2MWT-O series carries IP65 outdoor ratings as standard, CEIA’s SMD600 Plus uses IP66 anti-vandal panels, and Garrett offers IP55/IP65 configurations. Indoor-rated units under an open sky fail early and void warranties.

Is Evolv better than a traditional metal detector?

It’s faster at moving crowds, and that’s real value for stadiums. But the 2024 FTC action established that its detection claims were overstated — including missed knives in school incidents — so the honest answer is: better throughput, verified detection caveats, plus a recurring subscription. Test it against your actual threat items before signing a multi-year contract.

Do metal detectors and x-ray scanners do the same job?

No — a walk-through screens the person; an x-ray screens what they’re carrying. Most serious checkpoints run both in series: bags on the belt, people through the arch. Our x-ray vs metal detector breakdown covers when one, the other, or both belong at a lane.

Who installs and services walk through metal detectors in Texas?

2M Technology (Texas Security License B15309) supplies, installs, calibrates, and services walk-through units across Dallas-Fort Worth and ships nationwide. We also integrate them with x-ray scanners, turnstiles, and access control as complete checkpoint builds — request a quote with your entrance layout and expected daily throughput.