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MW 70x50 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010496

GTIN/EAN: 5906301811145

Diameter Ø

70 mm [±0,1 mm]

Height

50 mm [±0,1 mm]

Weight

1443.17 g

Magnetization Direction

↑ axial

Load capacity

168.21 kg / 1650.14 N

Magnetic Induction

507.83 mT / 5078 Gs

Coating

[NiCuNi] Nickel

technical specifications »

516.60 ZŁ with VAT / pcs + price for transport

420.00 ZŁ net + 23% VAT / pcs

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Lifting power and shape of magnets can be analyzed with our online calculation tool.

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Detailed specification - MW 70x50 / N38 - cylindrical magnet

Specification / characteristics - MW 70x50 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010496
GTIN/EAN 5906301811145
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 50 mm [±0,1 mm]
Weight 1443.17 g
Magnetization Direction ↑ axial
Load capacity ~ ? 168.21 kg / 1650.14 N
Magnetic Induction ~ ? 507.83 mT / 5078 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x50 / 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

Physical simulation of the product - data

The following data constitute the direct effect of a physical simulation. Results are based on models for the class Nd2Fe14B. Real-world parameters may deviate from the simulation results. Use these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (force vs distance) - interaction chart
MW 70x50 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5078 Gs
507.8 mT
 168.21 kg / 370.84 pounds
168210.0 g / 1650.1 N
 critical level
1 mm 4935 Gs
493.5 mT
 158.88 kg / 350.26 pounds
158876.4 g / 1558.6 N
 critical level
2 mm 4790 Gs
479.0 mT
 149.67 kg / 329.96 pounds
149666.1 g / 1468.2 N
 critical level
3 mm 4644 Gs
464.4 mT
 140.71 kg / 310.21 pounds
140708.8 g / 1380.4 N
 critical level
5 mm 4354 Gs
435.4 mT
 123.67 kg / 272.64 pounds
123667.4 g / 1213.2 N
 critical level
10 mm 3652 Gs
365.2 mT
 87.02 kg / 191.84 pounds
87016.1 g / 853.6 N
 critical level
15 mm 3017 Gs
301.7 mT
 59.37 kg / 130.88 pounds
59366.6 g / 582.4 N
 critical level
20 mm 2469 Gs
246.9 mT
 39.78 kg / 87.70 pounds
39781.3 g / 390.3 N
 critical level
30 mm 1645 Gs
164.5 mT
 17.66 kg / 38.93 pounds
17659.3 g / 173.2 N
 critical level
50 mm 773 Gs
77.3 mT
 3.89 kg / 8.59 pounds
3895.0 g / 38.2 N
 warning
Magnetic force decreases drastically with every subsequent millimeter of spacing. Keep in mind that even a microscopic distance (e.g., dirt, varnish, veneer) noticeably weakens the grip. Magnetic products work strongest in perfect adhesion; air break drastically cuts the power. See how rapidly the pull force drop, when the magnet does not touch directly to the metal substrate. When calculating the mounting, discard redundant distances.

Table 2: Slippage force (vertical surface)
MW 70x50 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 33.64 kg / 74.17 pounds
33642.0 g / 330.0 N
1 mm Stal (~0.2) 31.78 kg / 70.05 pounds
31776.0 g / 311.7 N
2 mm Stal (~0.2) 29.93 kg / 65.99 pounds
29934.0 g / 293.7 N
3 mm Stal (~0.2) 28.14 kg / 62.04 pounds
28142.0 g / 276.1 N
5 mm Stal (~0.2) 24.73 kg / 54.53 pounds
24734.0 g / 242.6 N
10 mm Stal (~0.2) 17.40 kg / 38.37 pounds
17404.0 g / 170.7 N
15 mm Stal (~0.2) 11.87 kg / 26.18 pounds
11874.0 g / 116.5 N
20 mm Stal (~0.2) 7.96 kg / 17.54 pounds
7956.0 g / 78.0 N
30 mm Stal (~0.2) 3.53 kg / 7.79 pounds
3532.0 g / 34.6 N
50 mm Stal (~0.2) 0.78 kg / 1.72 pounds
778.0 g / 7.6 N
The table below shows the theoretical weight limit needed to start the shifting of the magnet downwards on a upright metal surface (considering standard friction). The holding force varies with the distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MW 70x50 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
50.46 kg / 111.25 pounds
50463.0 g / 495.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
33.64 kg / 74.17 pounds
33642.0 g / 330.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
16.82 kg / 37.08 pounds
16821.0 g / 165.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
84.11 kg / 185.42 pounds
84105.0 g / 825.1 N
When hanging a element on a vertical wall (e.g., a car body), it will only hold only about 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip cause that products move down easier than they pull off. Planning a hanger? Consider that the shear force is much weaker than the maximum static pull force. On a slippery surface, the holder will give way down under a much lighter weight. Using a rubber pad can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 70x50 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 5.61 kg / 12.36 pounds
5607.0 g / 55.0 N
1 mm
8%
 14.02 kg / 30.90 pounds
14017.5 g / 137.5 N
2 mm
17%
 28.03 kg / 61.81 pounds
28035.0 g / 275.0 N
3 mm
25%
 42.05 kg / 92.71 pounds
42052.5 g / 412.5 N
5 mm
42%
 70.09 kg / 154.52 pounds
70087.5 g / 687.6 N
10 mm
83%
 140.18 kg / 309.03 pounds
140175.0 g / 1375.1 N
11 mm
92%
 154.19 kg / 339.94 pounds
154192.5 g / 1512.6 N
12 mm
100%
 168.21 kg / 370.84 pounds
168210.0 g / 1650.1 N
A too thin steel cannot conduct the entire magnetic field, which weakens actual performance of the magnet. If you install a neodymium to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To achieve full efficiency of this magnet's potential, you require a sufficiently solid element of metal. The material oversaturation causes that on sheet metal structures (e.g., car bodies), the magnet holds weaker. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - thermal limit
MW 70x50 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 168.21 kg / 370.84 pounds
168210.0 g / 1650.1 N
 OK
40 °C -2.2% 164.51 kg / 362.68 pounds
164509.4 g / 1613.8 N
 OK
60 °C -4.4% 160.81 kg / 354.52 pounds
160808.8 g / 1577.5 N
 OK
80 °C -6.6% 157.11 kg / 346.36 pounds
157108.1 g / 1541.2 N
100 °C -28.8% 119.77 kg / 264.04 pounds
119765.5 g / 1174.9 N
Standard neodymium magnets change their properties strength after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly destroy this product. With every degree above norm, the magnet's force briefly lowers. Refrain from using this product near heat sources higher than its working range. Ignoring the limit will result in permanent loss of magnetism.
*Engineering note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures compared to rod magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 70x50 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 611.75 kg / 1348.67 pounds
5 850 Gs
91.76 kg / 202.30 pounds
91762 g / 900.2 N
 N/A
1 mm 594.86 kg / 1311.43 pounds
10 014 Gs
89.23 kg / 196.72 pounds
89229 g / 875.3 N
 535.37 kg / 1180.29 pounds
~0 Gs
2 mm 577.80 kg / 1273.84 pounds
9 870 Gs
86.67 kg / 191.08 pounds
86670 g / 850.2 N
 520.02 kg / 1146.45 pounds
~0 Gs
3 mm 560.95 kg / 1236.68 pounds
9 725 Gs
84.14 kg / 185.50 pounds
84142 g / 825.4 N
 504.85 kg / 1113.01 pounds
~0 Gs
5 mm 527.90 kg / 1163.81 pounds
9 434 Gs
79.18 kg / 174.57 pounds
79184 g / 776.8 N
 475.11 kg / 1047.43 pounds
~0 Gs
10 mm 449.75 kg / 991.54 pounds
8 708 Gs
67.46 kg / 148.73 pounds
67463 g / 661.8 N
 404.78 kg / 892.38 pounds
~0 Gs
20 mm 316.46 kg / 697.68 pounds
7 304 Gs
47.47 kg / 104.65 pounds
47469 g / 465.7 N
 284.81 kg / 627.91 pounds
~0 Gs
50 mm 96.30 kg / 212.30 pounds
4 029 Gs
14.44 kg / 31.85 pounds
14445 g / 141.7 N
 86.67 kg / 191.07 pounds
~0 Gs
60 mm 64.22 kg / 141.59 pounds
3 291 Gs
9.63 kg / 21.24 pounds
9634 g / 94.5 N
 57.80 kg / 127.43 pounds
~0 Gs
70 mm 43.17 kg / 95.18 pounds
2 698 Gs
6.48 kg / 14.28 pounds
6476 g / 63.5 N
 38.86 kg / 85.66 pounds
~0 Gs
80 mm 29.36 kg / 64.73 pounds
2 225 Gs
4.40 kg / 9.71 pounds
4404 g / 43.2 N
 26.43 kg / 58.26 pounds
~0 Gs
90 mm 20.25 kg / 44.63 pounds
1 847 Gs
3.04 kg / 6.69 pounds
3037 g / 29.8 N
 18.22 kg / 40.17 pounds
~0 Gs
100 mm 14.17 kg / 31.23 pounds
1 545 Gs
2.12 kg / 4.68 pounds
2125 g / 20.8 N
 12.75 kg / 28.11 pounds
~0 Gs
Two magnetic products attract each other from a wider radius than a magnet and sheet combination. The connection of magnet-to-magnet generates a stronger field and a larger range of performance. Planning to create a powerful holder? Apply two magnets instead of a neodymium and a steel. Remember that when bringing together two magnets, the collision energy is extreme. The levitation is slightly lower than the attraction, but still impressive.
*Field value for N-N configuration is approximately ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Important: Results refer to shear force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 70x50 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 40.0 cm
Hearing aid 10 Gs (1.0 mT) 31.5 cm
Mechanical watch 20 Gs (2.0 mT) 24.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 19.0 cm
Car key 50 Gs (5.0 mT) 17.5 cm
Payment card 400 Gs (40.0 mT) 7.5 cm
HDD hard drive 600 Gs (60.0 mT) 6.0 cm
Powerful magnet radiation poses a real danger to IT equipment and pacemakers. These NdFeB products produce a flux that disrupts operation of digital equipment. Be aware: the unseen radiation passes through tissues and plastic. Increased vigilance must be exercised by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 70x50 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 13.97 km/h
(3.88 m/s)
 10.87 J
30 mm 20.06 km/h
(5.57 m/s)
 22.40 J
50 mm 24.70 km/h
(6.86 m/s)
 33.96 J
100 mm 34.46 km/h
(9.57 m/s)
 66.12 J
Magnetic elements are delicate – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can cause material chips or painful pinches to fingers. Hold the magnet firmly during installation so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Corrosion resistance
MW 70x50 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Pc)
MW 70x50 / N38

Parameter Value SI Unit / Description
Magnetic Flux 197 145 Mx 1971.5 µWb
Pc Coefficient 0.74 High (Stable)
Flux value emitted by the pole surface. Essential parameter when building generators as well as sensors. The Pc coefficient defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 70x50 / N38

Environment Effective steel pull Effect
Air (land) 168.21 kg Standard
Water (riverbed) 192.60 kg
(+24.39 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.
1. Sliding resistance

*Caution: On a vertical wall, the magnet retains only a fraction of its nominal pull.

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) significantly reduces the holding force.

3. Temperature resistance

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.74

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: 010496-2026
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The offered product is a very strong cylindrical magnet, manufactured from advanced NdFeB material, which, with dimensions of Ø70x50 mm, guarantees the highest energy density. The MW 70x50 / N38 model features a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 168.21 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 1650.14 N with a weight of only 1443.17 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets N38 are strong enough for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø70x50), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø70x50 mm, which, at a weight of 1443.17 g, makes it an element with impressive magnetic energy density. The value of 1650.14 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1443.17 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 70 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths and weaknesses of neodymium magnets.

Advantages

Apart from their superior magnetism, neodymium magnets have these key benefits:
  • Their magnetic field remains stable, and after around ten years it drops only by ~1% (theoretically),
  • They have excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
  • Thanks to the glossy finish, the coating of nickel, gold, or silver gives an clean appearance,
  • Magnetic induction on the working part of the magnet is very high,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Thanks to the option of flexible shaping and customization to individualized requirements, NdFeB magnets can be produced in a variety of shapes and sizes, which increases their versatility,
  • Universal use in modern industrial fields – they are commonly used in magnetic memories, motor assemblies, diagnostic systems, also multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions

Limitations

Cons of neodymium magnets: tips and applications.
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • Limited possibility of making threads in the magnet and complicated shapes - recommended is casing - magnetic holder.
  • Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets can complicate diagnosis medical when they are in the body.
  • Due to expensive raw materials, their price exceeds standard values,

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

The declared magnet strength refers to the peak performance, measured under optimal environment, namely:
  • on a base made of mild steel, effectively closing the magnetic flux
  • with a cross-section minimum 10 mm
  • with a plane perfectly flat
  • without any clearance between the magnet and steel
  • during pulling in a direction vertical to the mounting surface
  • at standard ambient temperature

Lifting capacity in real conditions – factors

In practice, the actual holding force is determined by several key aspects, ranked from most significant:
  • Space between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Chemical composition of the base – mild steel attracts best. Higher carbon content decrease magnetic properties and lifting capacity.
  • Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
  • Thermal conditions – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, however under shearing force the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the holding force.

Safe handling of NdFeB magnets
Bodily injuries

Risk of injury: The attraction force is so great that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Health Danger

Warning for patients: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or request help to handle the magnets.

Choking Hazard

These products are not intended for children. Eating multiple magnets may result in them pinching intestinal walls, which poses a direct threat to life and necessitates immediate surgery.

Do not drill into magnets

Dust generated during machining of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Protect data

Very strong magnetic fields can destroy records on credit cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.

Power loss in heat

Avoid heat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Metal Allergy

Studies show that nickel (standard magnet coating) is a potent allergen. If your skin reacts to metals, prevent touching magnets with bare hands or choose versions in plastic housing.

Eye protection

Neodymium magnets are ceramic materials, meaning they are prone to chipping. Collision of two magnets will cause them shattering into small pieces.

Safe operation

Handle with care. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can react.

Phone sensors

Remember: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your mobile, tablet, and navigation systems.

Caution! More info about risks in the article: Magnet Safety Guide.