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MW 70x30 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010096

GTIN/EAN: 5906301810957

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

865.9 g

Magnetization Direction

↑ axial

Load capacity

144.18 kg / 1414.37 N

Magnetic Induction

403.43 mT / 4034 Gs

Coating

[NiCuNi] Nickel

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317.17 ZŁ with VAT / pcs + price for transport

257.86 ZŁ net + 23% VAT / pcs

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Parameters along with shape of a magnet can be estimated using our force calculator.

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Physical properties - MW 70x30 / N38 - cylindrical magnet

Specification / characteristics - MW 70x30 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010096
GTIN/EAN 5906301810957
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 70 mm [±0,1 mm]
Height 30 mm [±0,1 mm]
Weight 865.9 g
Magnetization Direction ↑ axial
Load capacity ~ ? 144.18 kg / 1414.37 N
Magnetic Induction ~ ? 403.43 mT / 4034 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x30 / N38 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 312 - 380 °C
Curie Temperature TF 593 - 716 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Engineering simulation of the magnet - data

The following data are the result of a engineering calculation. Values were calculated on algorithms for the material Nd2Fe14B. Operational conditions might slightly differ from theoretical values. Use these calculations as a reference point when designing systems.

Table 1: Static force (pull vs gap) - characteristics
MW 70x30 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4034 Gs
403.4 mT
 144.18 kg / 317.86 LBS
144180.0 g / 1414.4 N
 critical level
1 mm 3934 Gs
393.4 mT
 137.11 kg / 302.27 LBS
137108.9 g / 1345.0 N
 critical level
2 mm 3830 Gs
383.0 mT
 129.96 kg / 286.52 LBS
129962.6 g / 1274.9 N
 critical level
3 mm 3724 Gs
372.4 mT
 122.86 kg / 270.87 LBS
122863.7 g / 1205.3 N
 critical level
5 mm 3507 Gs
350.7 mT
 108.99 kg / 240.28 LBS
108989.8 g / 1069.2 N
 critical level
10 mm 2963 Gs
296.3 mT
 77.77 kg / 171.46 LBS
77773.1 g / 763.0 N
 critical level
15 mm 2452 Gs
245.2 mT
 53.26 kg / 117.41 LBS
53257.6 g / 522.5 N
 critical level
20 mm 2003 Gs
200.3 mT
 35.55 kg / 78.38 LBS
35554.2 g / 348.8 N
 critical level
30 mm 1321 Gs
132.1 mT
 15.45 kg / 34.06 LBS
15450.6 g / 151.6 N
 critical level
50 mm 601 Gs
60.1 mT
 3.20 kg / 7.05 LBS
3199.7 g / 31.4 N
 medium risk
Pulling power drops significantly per each millimeter of gap. Keep in mind that even a very thin break (e.g., dirt, paint, veneer) strongly weakens the grip. Magnets hold strongest at the point of direct contact; air break kills the power. Notice how rapidly the load capacity drop, when the magnet does not touch directly to the metal substrate. When calculating the assembly, discard additional spacers.

Table 2: Vertical hold (wall)
MW 70x30 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 28.84 kg / 63.57 LBS
28836.0 g / 282.9 N
1 mm Stal (~0.2) 27.42 kg / 60.46 LBS
27422.0 g / 269.0 N
2 mm Stal (~0.2) 25.99 kg / 57.30 LBS
25992.0 g / 255.0 N
3 mm Stal (~0.2) 24.57 kg / 54.17 LBS
24572.0 g / 241.1 N
5 mm Stal (~0.2) 21.80 kg / 48.06 LBS
21798.0 g / 213.8 N
10 mm Stal (~0.2) 15.55 kg / 34.29 LBS
15554.0 g / 152.6 N
15 mm Stal (~0.2) 10.65 kg / 23.48 LBS
10652.0 g / 104.5 N
20 mm Stal (~0.2) 7.11 kg / 15.67 LBS
7110.0 g / 69.7 N
30 mm Stal (~0.2) 3.09 kg / 6.81 LBS
3090.0 g / 30.3 N
50 mm Stal (~0.2) 0.64 kg / 1.41 LBS
640.0 g / 6.3 N
The table below calculates the approximate force sufficient to cause the sliding of the magnet vertically on a upright metal surface (considering standard friction coefficient). The holding force is relative to the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 70x30 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
43.25 kg / 95.36 LBS
43254.0 g / 424.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
28.84 kg / 63.57 LBS
28836.0 g / 282.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
14.42 kg / 31.79 LBS
14418.0 g / 141.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
72.09 kg / 158.93 LBS
72090.0 g / 707.2 N
When hanging a holder on a vertical wall (e.g., a board), it you can count on barely approx. 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that magnets slip faster than they pop off the substrate. Designing a hanger? Consider that the shear force is much weaker than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a significantly smaller cargo. Application of an anti-slip layer can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 70x30 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 4.81 kg / 10.60 LBS
4806.0 g / 47.1 N
1 mm
8%
 12.01 kg / 26.49 LBS
12015.0 g / 117.9 N
2 mm
17%
 24.03 kg / 52.98 LBS
24030.0 g / 235.7 N
3 mm
25%
 36.05 kg / 79.47 LBS
36045.0 g / 353.6 N
5 mm
42%
 60.08 kg / 132.44 LBS
60075.0 g / 589.3 N
10 mm
83%
 120.15 kg / 264.89 LBS
120150.0 g / 1178.7 N
11 mm
92%
 132.17 kg / 291.37 LBS
132165.0 g / 1296.5 N
12 mm
100%
 144.18 kg / 317.86 LBS
144180.0 g / 1414.4 N
A thin metal plate is incapable of absorb the full magnetic flux, which weakens actual performance of the holder. Should you mount a strong magnet to a too thin substrate, the field will pass right through and the pull force will drop sharply. To squeeze the maximum of this neodymium's power, you require a sufficiently solid piece of metal. The material oversaturation causes that on delicate walls (e.g., thin profiles), the holder shows lower pull force. We advise picking the steel dimension according to the table below.

Table 5: Thermal resistance (material behavior) - power drop
MW 70x30 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 144.18 kg / 317.86 LBS
144180.0 g / 1414.4 N
 OK
40 °C -2.2% 141.01 kg / 310.87 LBS
141008.0 g / 1383.3 N
 OK
60 °C -4.4% 137.84 kg / 303.88 LBS
137836.1 g / 1352.2 N
80 °C -6.6% 134.66 kg / 296.88 LBS
134664.1 g / 1321.1 N
100 °C -28.8% 102.66 kg / 226.32 LBS
102656.2 g / 1007.1 N
Classic neodymiums lose parameters after exceeding the maximum temperature. Avoid high temperatures – excessive heat can permanently destroy this product. As the temperature rises, the magnet's force momentarily decreases. Avoid using this magnet close to heaters higher than its safe range. Too high temperature will cause permanent loss of magnetic properties.
*Important note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (pancake types) are more susceptible to demagnetization under lower heat stress compared to rod magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 70x30 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 386.08 kg / 851.15 LBS
5 354 Gs
57.91 kg / 127.67 LBS
57911 g / 568.1 N
 N/A
1 mm 376.71 kg / 830.51 LBS
7 969 Gs
56.51 kg / 124.58 LBS
56507 g / 554.3 N
 339.04 kg / 747.46 LBS
~0 Gs
2 mm 367.14 kg / 809.41 LBS
7 867 Gs
55.07 kg / 121.41 LBS
55071 g / 540.2 N
 330.43 kg / 728.47 LBS
~0 Gs
3 mm 357.57 kg / 788.30 LBS
7 764 Gs
53.63 kg / 118.24 LBS
53635 g / 526.2 N
 321.81 kg / 709.47 LBS
~0 Gs
5 mm 338.48 kg / 746.21 LBS
7 554 Gs
50.77 kg / 111.93 LBS
50772 g / 498.1 N
 304.63 kg / 671.59 LBS
~0 Gs
10 mm 291.85 kg / 643.41 LBS
7 014 Gs
43.78 kg / 96.51 LBS
43777 g / 429.5 N
 262.66 kg / 579.07 LBS
~0 Gs
20 mm 208.26 kg / 459.13 LBS
5 925 Gs
31.24 kg / 68.87 LBS
31238 g / 306.4 N
 187.43 kg / 413.21 LBS
~0 Gs
50 mm 62.81 kg / 138.47 LBS
3 254 Gs
9.42 kg / 20.77 LBS
9421 g / 92.4 N
 56.53 kg / 124.62 LBS
~0 Gs
60 mm 41.37 kg / 91.21 LBS
2 641 Gs
6.21 kg / 13.68 LBS
6206 g / 60.9 N
 37.24 kg / 82.09 LBS
~0 Gs
70 mm 27.41 kg / 60.43 LBS
2 150 Gs
4.11 kg / 9.06 LBS
4112 g / 40.3 N
 24.67 kg / 54.39 LBS
~0 Gs
80 mm 18.35 kg / 40.46 LBS
1 759 Gs
2.75 kg / 6.07 LBS
2753 g / 27.0 N
 16.52 kg / 36.41 LBS
~0 Gs
90 mm 12.45 kg / 27.44 LBS
1 449 Gs
1.87 kg / 4.12 LBS
1867 g / 18.3 N
 11.20 kg / 24.70 LBS
~0 Gs
100 mm 8.57 kg / 18.89 LBS
1 202 Gs
1.29 kg / 2.83 LBS
1285 g / 12.6 N
 7.71 kg / 17.00 LBS
~0 Gs
Two magnetic products attract each other from a significantly greater distance than a magnet and sheet combination. Such a system of magnet-to-magnet generates a stronger field and a wider radius of operation. Want to build a solid fastener? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the impact force is huge. The repulsion force is a bit weaker than the attraction, but still significant.
*Field value between like poles is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Important: Estimates demonstrate friction force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
MW 70x30 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 34.5 cm
Hearing aid 10 Gs (1.0 mT) 27.0 cm
Timepiece 20 Gs (2.0 mT) 21.0 cm
Mobile device 40 Gs (4.0 mT) 16.5 cm
Remote 50 Gs (5.0 mT) 15.0 cm
Payment card 400 Gs (40.0 mT) 6.5 cm
HDD hard drive 600 Gs (60.0 mT) 5.5 cm
A strong magnetic field is a large risk to electronics as well as medical implants. These magnets produce a field that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and housings. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 70x30 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 16.84 km/h
(4.68 m/s)
 9.47 J
30 mm 24.00 km/h
(6.67 m/s)
 19.25 J
50 mm 29.50 km/h
(8.19 m/s)
 29.07 J
100 mm 41.18 km/h
(11.44 m/s)
 56.66 J
NdFeB products are very brittle – a strong collision with metal can result in shattering. Pay attention to connection velocity – a magnet released freely turns into a projectile. Impact energy can destroy the magnet or painful pinches to fingers. Hold the magnet firmly during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when working with large magnets.

Table 9: Surface protection spec
MW 70x30 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Pc)
MW 70x30 / N38

Parameter Value SI Unit / Description
Magnetic Flux 159 225 Mx 1592.3 µWb
Pc Coefficient 0.53 Low (Flat)
Total magnetic flux emitted by the magnet pole. Essential parameter when building generators as well as sensors. Pc value determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 70x30 / N38

Environment Effective steel pull Effect
Air (land) 144.18 kg Standard
Water (riverbed) 165.09 kg
(+20.91 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.
1. Sliding resistance

*Warning: On a vertical wall, the magnet holds only a fraction of its max power.

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) drastically weakens the holding force.

3. Temperature resistance

*For N38 material, the safety limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.53

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology
Elemental analysis
iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%
Ecology and recycling (GPSR)
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010096-2026
Magnet Unit Converter
Pulling force
Field Strength
Input a figure in a single slot to see the conversion for the other units right away.

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This product is a very strong cylinder magnet, produced from modern NdFeB material, which, at dimensions of Ø70x30 mm, guarantees maximum efficiency. This specific item is characterized by an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 144.18 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is created for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the pull force of 1414.37 N with a weight of only 865.9 g, this rod is indispensable in miniature devices and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 70.1 mm) using epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets NdFeB grade N38 are suitable for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø70x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø70x30 mm, which, at a weight of 865.9 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 144.18 kg (force ~1414.37 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 30 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths and weaknesses of rare earth magnets.

Pros

Besides their durability, neodymium magnets are valued for these benefits:
  • Their power is durable, and after around ten years it decreases only by ~1% (according to research),
  • They are extremely resistant to demagnetization induced by presence of other magnetic fields,
  • A magnet with a metallic nickel surface is more attractive,
  • They show high magnetic induction at the operating surface, which affects their effectiveness,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to flexibility in constructing and the capacity to modify to individual projects,
  • Versatile presence in modern industrial fields – they are utilized in mass storage devices, drive modules, advanced medical instruments, and technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in small systems

Limitations

Drawbacks and weaknesses of neodymium magnets: application proposals
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend casing - magnetic holder, due to difficulties in producing threads inside the magnet and complicated shapes.
  • Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these magnets can disrupt the diagnostic process medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

The lifting capacity listed is a result of laboratory testing conducted under standard conditions:
  • on a block made of mild steel, optimally conducting the magnetic field
  • whose transverse dimension equals approx. 10 mm
  • with an ideally smooth touching surface
  • with direct contact (no impurities)
  • for force acting at a right angle (in the magnet axis)
  • at standard ambient temperature

What influences lifting capacity in practice

In practice, the real power is determined by a number of factors, listed from the most important:
  • Gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, corrosion or debris).
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Metal type – not every steel reacts the same. High carbon content worsen the attraction effect.
  • Smoothness – full contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was determined using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets
Protective goggles

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Demagnetization risk

Do not overheat. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, look for HT versions (H, SH, UH).

Nickel coating and allergies

Medical facts indicate that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from direct skin contact or select coated magnets.

Caution required

Handle with care. Rare earth magnets attract from a distance and connect with massive power, often faster than you can react.

Serious injuries

Large magnets can smash fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

Combustion hazard

Drilling and cutting of NdFeB material carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Data carriers

Do not bring magnets close to a purse, laptop, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.

Medical interference

Warning for patients: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or request help to work with the magnets.

Swallowing risk

Neodymium magnets are not intended for children. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and requires urgent medical intervention.

Magnetic interference

GPS units and smartphones are highly susceptible to magnetic fields. Direct contact with a strong magnet can decalibrate the internal compass in your phone.

Attention! Looking for details? Check our post: Why are neodymium magnets dangerous?