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Case file
Multi-zone DFMDs with adjustable sensitivity, pinpoint LED indicators and networked logging — for hotels, courts, places of worship, malls and government buildings.
/ The discipline, in detail
How we approach door-frame metal detectors.
Most lobby walk-throughs are an exercise in alarm-fatigue. Cheap detectors over-trigger on belt buckles and watches, the operator stops looking, and the screening loses its meaning by Tuesday afternoon. We deploy multi-zone units calibrated to the venue's real threat envelope — programmable per shift, networked to a central event log, and chosen for the discrimination performance that keeps false positives below a workable noise floor.
Sensitivity profiles are commissioned alongside the X-ray and frisk policy so that the three layers complement rather than duplicate each other. Logs are exported on schedule for compliance and forensic queries; firmware updates are managed as part of the AMC rather than left to chance.
On record
Every door-frame metal detectors engagement is documented end-to-end — design, programming, commissioning, calibration — and handed over with the files our successors would need if we were never to return.
/ Where we deploy this
Active across 4 sectors.
Door-Frame Metal Detectors is rarely a standalone brief — it sits inside a wider sector practice with its own codes, expectations and operating rhythm.
/ Sister services
The rest of elv.
A serious brief usually crosses two or three of these. Read across the discipline — we deliver them as one contract.
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Professional Audio & PA Systems
Intelligible, every seat in the house.
Public address, voice-evacuation and concert-grade audio for auditoriums, places of worship, stadia, transit hubs and event venues.0 - 02
CCTV & Surveillance
Coverage. Storage. Evidence.
IP video surveillance — Hikvision, Dahua, Axis, Bosch — designed to coverage, recording-bandwidth and retention specifications, with VMS and AI-analytics overlays.1 - 03
Access Control
Right person. Right door. Right time.
Card, biometric, mobile-credential and visitor-management — Honeywell, HID, Matrix and Suprema — integrated with CCTV, intrusion and HR systems.2 - 04
Fire Alarm System
Detection that pinpoints. Response that is coordinated.
Addressable fire detection and alarm — Honeywell, Bosch, Notifier and Siemens panels — integrated with PA, BMS, access control and emergency lighting per NBC, IS 2189 and NFPA 72.3 - 05
Fire Hydrant System
High-volume water, precisely where it's needed.
Wet- and dry-riser hydrant systems, jockey-and-main pump rooms, yard hydrants and four-way fire-brigade inlets — designed to NBC, IS 13039 and NFPA 14.4 - 06
X-Ray Baggage Scanners
Operator confidence, in seconds.
Dual-energy X-ray baggage and parcel scanners for airports, hotels, government buildings, courts, malls and corporate lobbies.5 - 07
Under Vehicle Surveillance (UVSS)
Full-chassis scan, the moment a vehicle arrives.
Embedded high-resolution UVSS with ANPR and driver-occupant cameras — a critical first line of defence at every vehicle entry point.6 - 09
Boom Barriers & Motorised Gates
Controlled flow, every gate.
Boom barriers, sliding and swing gates, road blockers, bollards and turnstiles — integrated with ANPR, RFID and access control.7 - 10
Nurse Calling System
Patient request to nurse response. Documented.
IP-based nurse call systems with bedside, bathroom, code-blue and staff-presence stations, integrated with mobile and PA.8
/ Frequently asked
Door-Frame Metal Detectors — what buyers ask first.
Multi-zone vs single-zone DFMD?
Multi-zone DFMD identifies the exact body region (head/chest/waist/ankle) for targeted secondary screening; single-zone only alarms without location, slowing throughput. Alarms on detection but tells the operator nothing about location — every alarm requires a wand follow-up. Multi-zone identifies the exact body region (head/chest/waist/ankle), enabling targeted secondary screening and dramatically faster throughput.
How many zones should a DFMD have?
12–16 zones is the modern default for commercial and government deployment. Cheaper 6-zone units cannot localise the metallic object's height accurately, which slows handheld follow-up. Premium deployments at airports and government use 33-zone units. We specify 18-zone Garrett or CEIA for most premium projects.
How sensitive should the DFMD be set?
Sensitivity is calibrated against the operational profile — a hospitality DFMD at a hotel lobby is calibrated to ignore typical jewellery and belt buckles while still catching firearms. A government DFMD is calibrated tighter. Calibration is per location and reviewed quarterly during AMC.
Is DFMD effective for non-ferrous metal?
Premium DFMDs (Garrett PD-6500i, CEIA HI-PE) detect both ferrous and non-ferrous metals — including aluminium and copper. Cheaper units sometimes miss non-ferrous; we don't specify those for commercial deployments.
How do we handle pacemakers and medical implants at DFMD?
DFMDs at standard sensitivity do not affect pacemakers or modern medical implants (the magnetic field is too weak), but we always provide a 'medical bypass' path — a side route with handheld screening for guests with implants, and signage explaining it. Standard procedure for our hospital-grade and hospitality deployments.
Does the DFMD integrate with the X-ray scanner workflow?
Yes — we route the entry through DFMD first, then bag-X-ray, with operator coordination through a shared monitoring station. The combination filters threats at two complementary axes (person and bag) and is the standard configuration we deploy at premium hospitality and government entries.
· Begin
Begin a
door-frame metal detectors
brief.
Tell us about the building, the timeline, and what success looks like a year after handover. We will reply within two working days with a written response, not a sales pitch.