Passive ferro-magnetic sensors that flag metal objects and implants before they cross the threshold into your MRI suite — calibrated to your site's own magnetic field, not a factory default.
The MRI bore doesn't distinguish between a hairpin and an oxygen cylinder. Every ferrous object that crosses the 5-gauss line is a hazard until someone checks — FerroSafe checks before the technologist has to.
Aneurysm clips, older pacemakers, shrapnel, surgical hardware — ferrous implants that were never disclosed, or forgotten at intake. Solo screens the patient during preparation, before they're anywhere near the bore.
Oxygen cylinders, steel trolleys, wheelchairs, cleaning equipment — large ferrous objects that turn into projectiles the moment they enter the field. Shield Plus watches the doorway itself.
Solo and Shield Plus share the same passive-detection core. Where they differ is placement and what they're built to catch — and both are configured to your site during commissioning.
Patient prep screening
Used during patient preparation, before the exam. Solo screens for ferrous objects and implants on or in the patient, so anything missed at intake gets caught before it becomes a scan-room incident.
Doorway detection zone
Built to catch what Solo isn't aimed at: the large ferrous objects that come through on wheels. Shield Plus protects the doorway itself from projectile-hazard incidents, and continuously tunes itself to your suite's ambient magnetic field as conditions shift.
FerroSafe Shield Plus's AI-adaptive sensing is a continuous refinement of the site calibration described below — it keeps learning after commissioning, rather than relying on a single fixed setting.
Detection is only useful if someone sees it. FerroSafe pairs the sensors with a display at the doorway and an alarm unit at the console, so status and alerts are visible wherever the technologist happens to be.
At the technologist's console
The Console Alarm Unit sits right at the MRI console, connected wirelessly to Shield Plus. It relays every detection in real time and carries its own audio and visual alarm — so the technologist knows about an infringement immediately, without needing to watch the door.
A high-resolution touch display sits beside the Shield Plus sensor itself. During an exam it simply shows plain-language status — "Patient Scanning in progress" — so anyone walking up knows what's happening. Outside an exam, the same screen is where sensitivity, detection distance, and alarm settings get calibrated.
Beside the Shield Plus sensor
When the exam begins, the technician activates SCAN ON from the console — nothing extra to do at the doorway. That single action lights up the SCAN ON sign on the MRI door frame, blinks the sensor light columns beside the door, and switches the touch display to a plain "Patient Scan in Progress" message, so anyone approaching knows immediately that entry is restricted.
SCAN ON — active during a patient scan
Three moments, every time someone or something nears the suite — no extra step for the technologist to remember.
A patient, staff member, or piece of equipment enters the calibrated detection zone at the suite door.
Sensors read the ferrous signature within the configured 1.0–1.5 m range — no active field, nothing worn by the patient.
The door-side unit sounds an adjustable-volume alarm and lights the zone that found the object — and relays the same alert wirelessly to the Console Alarm Unit at the technologist's desk.
No two MRI suites behave alike. We record your site's magnetic field data before commissioning and calibrate the sensors to it — so detection reflects reality, not a generic factory setting.
| Sensor type | Passive ferro-magnetic sensors |
| Detection range | Adjustable, 1.0 – 1.5 m |
| Visual zones (Solo) | 3 zones, indicate detected object's location |
| Alarm | Audio and visual, adjustable volume — at the door and at the console |
| Console Alarm Unit | Wireless link to Shield Plus; independent audio/visual alarm at the MRI console |
| Status display | High-resolution display of sensor status |
| Scan indicator | SCAN ON light active during MRI scanning |
| Mounting | Frame-mounted — beside the patient preparation area (Solo) or the MRI suite door (Shield Plus) |
| Calibration | Site-specific, based on recorded field data |
| AI-adaptive sensing | Shield Plus only — continuously analyses ambient magnetic field and self-adjusts detection behaviour |
| Configuration | Configurable per site requirement |
| Models | FerroSafe Solo (implant hazard) · FerroSafe Shield Plus (projectile hazard) |
| Patent | Detection technology patented by Medirays Imaging Pvt. Ltd. |
Tell us about your MRI suite layout and we'll scope a FerroSafe configuration — Solo, Shield Plus, or both — around your site's own magnetic field.
