Item Number: SKU:SM-201

MRI In Use LED Sign

Q: Where should an LED MRI In Use warning sign be installed in an MRI suite?

This LED sign is designed for placement outside MRI-protected zones, typically at the final checkpoint before staff or visitors enter Zones III or IV. Facilities mount it near magnet-room doors, control-room exits, or screening areas so everyone approaching the field can clearly see that the magnet is energized at all times. Because it's not intended for use inside magnet-exposed areas, it's hardwired in a safe location where it can deliver a bright, constant warning without interfering with MRI operation.

Q: What power setup does the MRI In Use LED sign require, and does it need any ongoing maintenance?

The sign uses a hardwired 100–240 VAC connection, which provides consistent, always-on illumination without relying on plug-in power. Beyond basic electrical installation, it requires very little upkeep—just occasional surface cleaning to keep the faceplate clear. An optional battery backup version is also available.

$139.00

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The MRI In Use LED Sign is a purpose-built lightbox designed to clearly signal when an MRI machine is active. Featuring bright, high-quality LED illumination, it ensures excellent visibility—even from a distance or in low-light environments. The bold “MRI In Use” message provides an immediate, unmistakable alert, helping individuals recognize when safety precautions are required. Ideal for hospitals and imaging centers, this sign is a reliable safety solution that supports the protection of patients, staff, and visitors. Power requirement: 100-240VAC 50/60Hz hard wiring.

Features:

Clearly marks magnet-on status near MRI rooms, improving patient and staff safety
Energy-efficient LEDs ensure the message is visible from a distance, day or night
Displays a prominent safety warning with red text on a white background
Hardwired Installation (100-240 VAC): Battery backup optional
Easy to install via wall-mounting and cost-effective for all types of MRI facilities
MR Unsafe: For installation outside of MRI-protected zones

Overall Dimensions:

12.25"L x 2"W x 7.5"H

Available options:

SM-201: MRI In Use LED Sign - Standard
SM-202: MRI in Use LED Sign - with Battery Backup

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Frequently Asked Questions

1. Where should an LED “MRI In Use LED Sign” warning sign be installed in an MRI suite?

This LED sign is designed for placement outside MRI-protected zones, typically at the final checkpoint before staff or visitors enter Zones III or IV. Facilities mount it near magnet-room doors, control-room exits, or screening areas so everyone approaching the field can clearly see that the magnet is energized at all times. Because it’s not intended for use inside magnet-exposed areas, it’s hardwired in a safe location where it can deliver a bright, constant warning without interfering with MRI operation.

2. How visible is the LED sign in busy MRI hallways or low-light areas?

The red LED display is easy to read from a distance, whether the hallway is brightly lit or dim. The illuminated lettering cuts through shadows, glare, and typical MRI-suite lighting conditions, which makes it far more noticeable than a standard printed sign. Many MRI teams prefer LED warnings for high-traffic corridors because the constant glow reduces the chance of someone overlooking the magnet hazard.

3. What power setup does the sign require, and does it need any ongoing maintenance?

The sign uses a hardwired 100-240 VAC connection, which gives you consistent, always-on illumination without relying on plug-in power. Beyond basic electrical installation, it requires very little upkeep—just occasional surface cleaning to keep the faceplate clear. An optional battery backup version is also available.

Additional Resources

Innovations in MR Conditional Transport Devices (2025 Trends)