Walk Through Detectors

Our line of walk-through metal detectors ensures quick and non-intrusive screening, enhancing the overall safety of airports, event venues, and other public spaces. These detectors feature adjustable sensitivity settings, allowing you to identify potentially hazardous metallic items, regardless of their size.

Walkthrough Metal Detectors — 7 Models Compared

Model Zones Environment Type Best For
2MWT-i18Z 18 Indoor Fixed Schools, offices, light-security venues
2MWT-i24Z 24 Indoor Fixed Courthouses, government buildings, hospitals
2MPWT-i24Z 24 Indoor Portable Temporary school events, trade shows, indoor pop-up checkpoints
2MWT-O18Z 18 Outdoor Fixed Warehouse loading docks, outdoor facility entrances
2MPWT-O24Z 24 Outdoor Portable Stadium gates, festivals, outdoor events, construction checkpoints
2MWT-o45Z 45 Outdoor Fixed Airports, large arenas, federal facilities
2MWT-o90Z 90 Outdoor Fixed Maximum-precision high-security entry points

How to Choose Walkthrough Metal Detectors

  • Zone count — More zones = more precise body location of a detected item. 18 zones is sufficient for general deterrence. 24 zones is the standard for school and courthouse walkthrough metal detectors. 45+ zones reduces false alarms at high-volume checkpoints where every delay costs throughput.
  • Indoor vs. outdoor rating — Indoor walkthrough metal detectors are not weatherproofed. For any outdoor or semi-covered installation, specify an outdoor-rated model. Operating an indoor-rated detector in rain or humidity causes false alarms and hardware failures.
  • Fixed vs. portable — Portable walkthrough metal detectors fold flat for transport and set up in minutes — no tools required. Fixed models offer higher sensitivity, faster throughput, and are better suited for permanent checkpoints.
  • DSP processing — Models with Intelligent DSP (Digital Signal Processing) automatically filter interference from nearby electronic equipment, reducing false alarms in environments with metal infrastructure or RFID readers nearby.
  • ADA compliance — Several 2M Technology walkthrough metal detector models include ADA-compliant lane widths and side-exit provisions for wheelchair users. Confirm ADA requirements with your security director before specifying.

Contact 2M Technology for a walkthrough metal detectors quote, sensitivity calibration, and installation across the United States. See also the full metal detectors product range including handheld wands and thermal + metal combination gates.

For walkthrough metal detector industry standards and testing guidelines, see the DHS Science & Technology weapons detection program.

Walkthrough metal detectors are security screening portals that use electromagnetic field technology to detect metallic threats on persons passing through. Standard equipment at courthouses, schools, stadiums, government buildings, and high-security facilities. Available in 18–90 zone configurations for indoor and outdoor deployments.

Product Lineup

Detection Zones (Total)

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Detection Zones (Top to Bottom)

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Detection Zones (Left to Right)

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Environment

LED Indicator Bars

Adjustable Sensitivity by Zone

IP Rating

Walk Through Detectors FAQ

A walkthrough metal detector is a security screening portal that uses electromagnetic field technology to detect metallic objects on a person passing through it. It is the standard security screening tool at airports, courthouses, schools, stadiums, government buildings, and high-security facilities worldwide.

Walkthrough metal detectors generate a continuous low-frequency electromagnetic field between transmitter and receiver panels. When a metallic object passes through the field, it creates a distortion that triggers an alert. Multi-zone models pinpoint the location of the detected object on the body, helping security officers respond faster and more accurately.

Walkthrough metal detectors detect ferrous metals (iron, steel), non-ferrous metals (aluminum, copper, brass), and alloys. Modern multi-zone detectors can detect handguns, knives, metallic contraband, and large metallic objects while filtering out common items like belt buckles and small jewelry through adjustable sensitivity settings.

The number of zones refers to how many distinct detection areas the portal has from head to toe. An 18-zone detector divides the body into 18 detection segments for approximate threat location. A 90-zone detector provides much more precise location data, reducing false alarms and helping officers identify exactly where a threat is located, which is critical for high-throughput screening environments.

Yes. 2M Technology offers outdoor-rated walkthrough metal detector models (IP65 or higher) designed for outdoor checkpoints, stadium entrances, event perimeters, and construction sites. Outdoor models are weatherproofed against rain, humidity, and temperature extremes.

Under standard operating conditions, walkthrough metal detectors process 300-600 persons per hour per lane depending on the model, sensitivity settings, and whether bags are screened separately. High-sensitivity multi-zone models may require secondary screening for alerts, reducing effective throughput to 200-400 persons per hour in practice.

Walkthrough metal detectors are used in courthouses, schools and universities, hospitals, correctional facilities, stadiums and event venues, airports, government buildings, houses of worship, corporate campuses, warehouses, manufacturing facilities, and any location requiring person screening for metallic threats or contraband.

Yes. A complete primary screening lane pairs a walkthrough metal detector with an X-ray baggage scanner — persons walk through the metal detector while their bags pass through the X-ray conveyor simultaneously. 2M Technology designs and installs complete screening lane configurations including both components.

Learn More About Walk Through Detectors

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