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  1. Home
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  5. Lightning protection
  6. Portable lightning detector "Lightning Finder-kun"

Portable lightning detector "Lightning Finder-kun"

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last updated:Jul 10, 2026

三栄電子
三栄電子
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Before you can see or hear it! Detects lightning within a radius of approximately 40 km. The lightning detector "Raiden-kun" makes safety visible.

The approach of lightning is not sudden; there are "signs." The portable lightning detector "Kaminari-tan-kun" captures the signs of lightning as electromagnetic waves and visualizes the danger level from about 40 km away. It creates an environment where anyone can make judgments based on the same criteria with three levels: "Caution, Alert, Danger." San-ei Electronics provides total support for the optimal operational methods tailored to the site. <Do you have these challenges?> Delayed awareness of approaching lightning Relying on others to decide when to suspend work Difficulties in sharing information in a large area We visualize the "invisible lightning risk" in real-time!

    Lightning protection
NTD-P01_雷探くん.png

Portable lightning detector "Lightning Finder-kun"

NTD-P01_雷探くん.png
NTD-P01_雷探くん.png
  • Related Link - https://www.3ei.co.jp/product_lp/kaminari/

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basic information

【Specifications】 Model: NTD-P01 Raitan-kun (Thunder Detector) Lightning detection range: Approximately 40km (varies with surrounding conditions and scale of lightning discharge) Lightning information display/alarm sound: Detection and three-level alarm display (LED)/Alarm sound (buzzer, switchable between large, medium, and small) Operating temperature: -10℃ to +40℃, humidity: 85% RH or less RoHS Directive: Compliant Power supply and operating time: Approximately 400 hours (standby mode) with two AA alkaline batteries Dimensions and weight: Approximately D: 86×W: 54.5×H: 15.5mm, approximately 65g (including batteries) Water and dust resistance: Life waterproof IP33 (JIS C 0920) Protection against solids: No entry of wires or solid objects with a diameter of 2.5mm or more Protection against water: No harmful effects from water droplets falling within a range of 60 degrees from vertical *This product is a device for detecting lightning and is not a device for preventing lightning accidents. Distance and time are approximate.

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Applications/Examples of results

【Uses】 ● Outdoor leisure activities such as mountain climbing, hiking, camping, and fishing ● Outdoor events such as school activities, festivals, and concerts ● Outdoor sports such as baseball, soccer, and golf ● Outdoor work in civil engineering, telecommunications, electricity, construction, and fireworks

Detailed information

  • 雷情報表示.png

    The danger level will be displayed in three stages.

  • 雷探くん_特徴.png

    Lightning protection anywhere. Pocket-sized safety management.

Company information

三栄電子

三栄電子

Trading company/Wholesale

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San-ei Electronics Co., Ltd. is an electronic components trading company established in 1968. We sell electronic components such as capacitors, which stabilize voltage and can store and discharge electricity, and inductors, which can store energy in a magnetic field formed by current. We also engage in product development and contract manufacturing in collaboration with over 50 partner manufacturers both domestically and internationally. We are sales agents for companies such as Murata Manufacturing Co., Ltd. and Rohm Co., Ltd. In recent years, we have expanded our offerings beyond electronic components to include individual products, tackling solutions for changing social environments across various industries, including heat countermeasure products, cleaning robots, and transport robots. Please feel free to contact us with any inquiries.

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