educational science and education toys teaching aids metal detector popular science early education diy science and technology small production electromagnetic eddy current 益智科教玩具教具金属探测器 科普早教diy科学科技小制作电磁涡流

For bulk custom orders from the factory, please contact: 1 5858 9 4 0 8 6

Product Name: KX2013 Metal Detector

Model Number: KX2013 Metal Detector
Size: 200*78*30 mm
Weight: Approximately 90g
Material: plastic components + battery case + double-sided tape + circuit board + coil...
Color: Red
Does it use a battery: Yes
Packaging: 200 pcs
Box dimensions: 600*450*550mm

Students, have you ever gone to a high-speed train station, airport, or railway station and passed security checks? Do you know what the police officers look like and if there are any prohibited items on you? In this activity, they used a device called a metal detector. Let’s build a metal detector together and understand how it works!

Basic Principles:

When an electric current passes through the coil, it generates a changing magnetic field within the coil. Due to electromagnetic induction, an induced current (eddy current) is produced inside the metal object. The eddy current then generates another magnetic field, which in turn affects the original magnetic field. This interaction causes the detector to emit sound, allowing us to understand the application of metal detectors in daily life through experiments.

Instructions for use:

When adjusting the sensitivity of the metal detector, the detector (oscillating coil) must be kept away from metals, including paper with aluminum foil. First, turn on the power switch, then rotate the sensitivity trim potentiometer knob until the buzzer stops making a sound—at this point, the detection sensitivity is optimal. When using the metal detector to detect metals, the buzzer will emit sound as soon as the detector gets close to any metal, and the sound automatically stops once it is moved away to a certain distance.

Application of metal detectors:

1. The Important Role of Archaeology
In battlefield archaeology, most physical evidence is metal-based, such as rocket warheads, ammunition shells, bullets, cannons and artillery shells, grenades, or swords and knives... The specific items depend on the historical period of the battle. Therefore, the most important tool for battlefield archaeologists is a simple metal detector.

2. Security inspection with metal detector
Metal detectors for security purposes are designed to detect metal objects carried by humans or objects. They can detect weapons, explosives, or small metallic items carried in people, packages, luggage, letters, fabrics, and the like.

Zhejiang Jianyi Education Technology Co., Ltd.
Zhejiang Jianyi Education Technology Co., Ltd. (formerly Yifei Toys Factory)Established in 2007, the current brand names include “XING TEACHER” and “JIAN YI”. Through 10 years of relentless effort, the company has gradually matured. Our firm is a member of the Ministry of Education’s Teaching Equipment Industry Association and a key enterprise in Zhejiang Province’s teaching equipment sector. For three consecutive years, it was recognized by Jinhua City as a “Contract-Abiding and Creditworthy” entity, and in 2014, it was awarded the title of “Advanced Enterprise in Jinhua Teaching Instruments Industry” by Zhejiang Province.
Zhejiang Jianyi Education Technology Co., Ltd. is a high-tech enterprise that integrates modern scientific research and development of educational equipment, curriculum design, integrated teaching resources, and technical services. With its high-tech products and modern educational equipment, Zhejiang Jianyi Education Technology Co., Ltd. sells its products across the country and to Europe, America, Japan, South Korea, and other regions. After years of accumulation, the company has reached a certain scale. In terms of technological innovation, the company has professional designers who develop complete sets of educational products and upgrade existing products. In terms of production, management, and installation services, the company strictly adheres to the standards of the ISO9001 international quality assurance system. In marketing, the “Teacher Xing” products have been introduced to many provinces and cities in China and enjoy a good reputation. Over the years, it has provided high-quality, advanced, and professional series of modern teaching equipment and specialized R&D and customization services for the education sector. With excellent, highly qualified professionals, comprehensive after-sales service, high product quality, and a positive corporate image, the “Teacher Xing” educational and physical science series, chemistry series, energy, wind, geography, biology, art, and more products have won multiple bids in education bureau tenders. Zhejiang Jianyi Education Technology Co., Ltd. continues to uphold the business philosophy of “ultimate quality, diligent service, and sincerity in people,” maintain the “Teacher Xing” culture, build the “Teacher Xing” brand, and pursue the development strategy of the “Teacher Xing” enterprise. It provides excellent equipment and high-quality services for school teaching and research. We are willing to cooperate wholeheartedly with new and old friends at home and abroad, work together, and serve education with all our efforts and contribute to the education industry.

Please check that the circuit is unobstructed and all components are intact before assembly, as well as ensure all contact points are properly aligned. During assembly, be careful not to let glue get on your clothes or skin. Keep the components out of reach for younger siblings to prevent them from accidentally swallowing them! Do not play with them on your head, as the model may fall and hurt you!