• Red testing magnet with 'MR UNSAFE' label on a white background
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Item Number: SM-150

MRI Handheld Test Magnet

MRI Handheld Test Magnet

$199.00
$199.00
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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Thoroughly evaluate your MRI equipment and accessories with the power of the handheld test magnet. With a magnetic strength equivalent to a 0.7-T MRI, this compact tool excels at detecting even weakly ferromagnetic objects that other low-strength screening magnets may overlook. Designed for efficiency, its lightweight and spherical shape ensure straightforward handling and easy removal from magnetic surfaces during testing. This screening magnet is exclusively intended for screening devices and accessories, and must not be used within the MRI room. This screening magnet is not intended for patient use. 

Engineered by experts in MR technology and safety, this magnet is a critical addition to busy MRI environments requiring precise and reliable diagnostics. Featuring a robust magnetic field exceeding 3,200 gauss, it has been developed to meet the needs of modern MRI products, aiding in the detection of ferromagnetic properties in devices prior to entering regions such as Zone III and IV. Built from durable neodymium, its rare-earth design ensures an incredibly slow loss of strength (1% every 100 years), making it a long-lasting asset. For added protection, the magnet comes with a foam-padded storage case to shield it during periods of non-use. Maximize safety and efficiency with this indispensable tool for flawless MRI equipment screening.

NOT TO BE USED IN THE MRI ROOM!

  • Pull Force : 14.60lbs
  • Color: RED
  • Equal to 0.7 Tesla in Strength
  • Surface Field : 7080 Gauss
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Frequently Asked Questions

1. What makes the MRI Handheld Test Magnet useful for screening MRI equipment?

This test magnet gives you a quick way to check devices and accessories for ferromagnetic pull before they’re allowed anywhere near Zones III or IV. With a surface field of over 7,000 gauss—roughly equivalent to a 0.7-T MRI—it can reveal weak ferromagnetic behavior that low-strength magnets often miss. Techs use it to screen coils, tools, monitoring accessories, and vendor equipment so that only verified non-ferromagnetic items move forward in the workflow. It’s a simple tool that adds a strong layer of protection to your safety process.

2. Can this handheld test magnet be used inside the MRI room?

No—this magnet must stay out of Zone IV. Its rare-earth neodymium construction produces a powerful pull force, which makes it unsafe to bring near the bore. It’s designed for equipment screening in Zones II and III, where you can safely test items before they enter controlled areas. Keeping it outside the room ensures staff safety and avoids accidental attraction toward the MRI system.

3. How is this MRI test magnet different from smaller, low-strength screening magnets?

Most small screening magnets don’t have enough strength to detect weak or borderline ferromagnetic components—especially in larger accessories or devices made from mixed materials. This handheld magnet delivers 14.6 lbs of pull force, making it strong enough to pick up subtle magnetic responses that can be risky in the MR environment. Its spherical design also makes it easier to handle and release from metal surfaces during testing. For facilities that screen equipment daily, the higher field strength and long lifespan (only ~1% loss per century) make it a more reliable long-term option.

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