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Item Number: SM-100

MRI Test Magnet

MRI Test Magnet

$489.00
$489.00
MR Unsafe What does this mean?

MR Safe – an item that poses no known hazards in all MRI environments. Using the terminology, “MR Safe” items are non-conducting, non-metallic, and non-magnetic items such as a plastic Petri dish. An item may be determined to be MR Safe by providing a scientifically based rationale rather than test data.

MR Conditional – an item that has been demonstrated to pose no known hazards in a specified MR environment with specified conditions of use. “Field” conditions that define the MR environment include static magnetic field strength, spatial gradient magnetic field, dB/dt (time rate of change of the magnetic field), radio frequency (RF) fields, and specific absorption rate (SAR). Additional conditions, including specific configurations of the item (e.g., the routing of leads used for a neurostimulation system), may be required.

MR Unsafe – An item that is known to pose hazards in all MRI environments. MR Unsafe items include magnetic items such as a pair of ferromagnetic scissors.

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This powerful handheld rare-earth magnet is an essential tool for Magnetic Resonance (MR) professionals working in MRI environments. Specifically designed for magnetic resonance screening, it aids in identifying potential ferromagnetic properties in patients, devices, and implants before they enter sensitive MRI zones, commonly referred to as Zones III and IV. With a magnetic strength of over 3,200 gauss, this device provides reliable and sensitive detection, even for objects with weak ferromagnetic properties. Crafted from durable neodymium, a rare-earth material, this magnet boasts incredible longevity, experiencing only a 1% loss in magnetic strength over a century. The inclusion of a foam-padded case ensures safe storage and protection when not in use.

Developed by leading experts in MR safety and imaging, this magnet is specifically designed to meet the operational needs of busy MRI facilities. It serves as a critical component of MRI equipment, streamlining magnetic resonance screening procedures while maintaining accuracy and consistency. This product addresses the requirement for accessible, high-powered handheld magnets in MR environments. Whether in clinical or research settings, this is a must-have addition to your MRI products, ensuring heightened safety and operational efficacy.  

NOT TO BE USED IN THE MRI ROOM!!

  • Weight: 2 pounds.
  • Color: Red, Silver lettering.
  • Magnetic Field Strength: Surface strength greater than 3,200 gauss, while remaining at 1,200 gauss approximately 2cm distance from the surface.
  • Dimensions: 3.5" height by 3" width by 5.5" length.  
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Frequently Asked Questions

1. What is an MRI test magnet used for, and why do MRI facilities need one?

An MRI test magnet is a handheld rare-earth magnet used during patient and equipment screening to check for any ferromagnetic components before entering Zones III and IV. With more than 3,200 gauss at the surface, it can detect even weak ferromagnetic pull that might not be obvious during a visual check. Imaging centers use it to screen personal items, implants with unclear documentation, and non-MRI equipment to prevent unsafe objects from entering the magnet room.

2. Can the MRI test magnet be brought into the MRI room during scanning?

No — this tool must stay out of the MRI room. Because it’s a high-strength neodymium magnet, it poses a significant safety risk if taken anywhere near the bore. It’s designed for screening in Zones II and III, before a patient or device approaches the controlled-access area. Keeping it outside the magnet room protects staff, patients, and sensitive equipment while still giving you the strong magnetic pull you need to confirm ferromagnetic behavior.

3. What makes this MRI test magnet reliable for daily screening in a clinical setting?

This test magnet is built from durable neodymium, which holds its magnetic strength for decades — losing only about 1% over 100 years. Its compact size (3.5" × 3" × 5.5") and foam-padded storage case make it easy to use and protect between screenings. Because it consistently produces strong, repeatable pull forces, techs rely on it for quick, accurate ferromagnetic screening of tools, accessories, and patient belongings before they get anywhere near the magnet room.

Additional Resources

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