Magnet N-pole/S-pole discriminator (Magnetic polarity discrimination device)
SW-350 (How to Check Magnet Polarity)
You can easily distinguish between the N pole and S pole of a magnet. It is also suitable for school research projects. LEDs corresponding to the N pole and S pole will light up.
The N and S poles of the magnet can be visually identified. When magnetic fields are detected, the LED lights up red for the N pole and blue for the S pole (when using the DW-350). Additionally, it is equipped with individual transistor outputs, making it easy to apply in circuits. It operates from DC 10V, so it can also be powered by connecting batteries in series. You can use it for various applications, from elementary school experiments to sophisticated control systems, depending on your ideas. * Powerful magnets can be obtained even at 100 yen shops, so feel free to try various things.
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basic information
Model DW-350 (Reference) Power Supply: DC 10V to 30V (7 AA batteries in series are also OK) Transistor Output: 2 channels Protection Structure: Compliant with IP67 Size: M12×4mm, Cable 2m (Nut included) *The threshold is around 0.5mT, so it cannot detect magnets below that level or small magnetic forces such as those from the magnetic stripe of a cash card.
Price range
P1
Delivery Time
Applications/Examples of results
Door open/close detection Attach N and S magnets to two types of passing pallets for identification Outdoor multi-story parking lot Front and back detection Deceleration (S pole) and stop (N pole) of the moving platform, etc.
catalog（5）
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CAD data（4）
| Model number | overview | File |
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| DW-350 | M12 N/S pole individual output magnetic switch NPN |
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| DW-350 | M12 N/S pole individual output magnetic switch NPN |
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| DW-100 | Corner shape N/S pole 2 output magnetic switch |
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| DW-100 | Corner shape N/S pole 2 output magnetic switch |
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Company information
Utilizing our original technology of saturable coils, we provide a fundamentally simple magnetic detection element technology that allows for high precision and long-term stability even under adverse conditions. We have received strong support from a wide range of industries, including unmanned transport carts, industrial equipment, labor-saving machines, material handling, machine tools, injection molding machines, civil engineering and construction robots, food machinery, industrial machinery, nuclear facilities, and ships. We also excel in sensors for motorsports such as F1 and Moto GP, tilt meters for construction machinery, and magnetic sensors used for ultra-high precision measurements in scientific fields. Some of our products are also used in applications like multi-story parking and golf cart guidance sensors. All of our products are developed and manufactured 100% in Japan, with over 80% of our product lineup being custom-made based on individual customer requests. We offer many custom options including waterproof, explosion-proof, heat-resistant, water-resistant, and radiation-resistant specifications. If you have any issues related to sensing or measurement, please feel free to consult with us. IoT Platform: Our sales and technical staff will fully support you, from minor customizations of existing products to proposals for new detection principles. You can also rely on us for assistance with Kaizen. For standard products, we offer a reassuring 3-year warranty. Our location is in Ina, Nagano Prefecture, and we are featured on Ipros Monozukuri.