Small Hand Held Detector Safety Inspection Instrument Sound-Light Vibration Alarm

September 12, 2025

Model No.: MD-300s
Temperature Range: -15°C to 55°C
Packing: 25 per box
Trademark: Zhonganxie
Transport Packaging: Carton boxes or customized as per customer's requirements
Specification: 520mm x 100mm x 50mm
Origin: Shenzhen, China
HS Code: 8543709100

Professional Black Folding Metal Detector – Industrial Operation with Current Less than 50mA

This high-performance metal detector is designed for security and safety applications. It efficiently identifies dangerous goods and suspicious items during inspections.

Key features include a lightweight and portable design, excellent sensitivity, and ease of use. The device is ideal for both professionals and occasional users due to its intuitive operation.

It offers multiple alarm modes, including sound, vibration, and visual indicators (red/green LED), ensuring clear feedback in different environments.

The sensitivity can be adjusted with an on/off switch and low-sensitivity mode, allowing customization based on the detection scenario.

High sensitivity allows detection of small objects such as a 20mm pin or a 60mm USD 25 cent coin, while low sensitivity mode is suitable for detecting larger metal items like a 38-caliber handgun, pen knife, or razor blade.

Power options include a 9V alkaline battery (model 6F22) or a rechargeable battery, providing flexibility and long-lasting performance.

Operating frequency is set at 22 KHz, with a working voltage range of 7V–9V and current consumption under 50mA, making it energy-efficient and reliable.

Operational temperature range is from -5°C to +55°C, making it suitable for a wide range of environmental conditions.

Dimensions of the packing are 360mm x 150mm x 500mm, and the unit’s net weight is only 300g, making it easy to transport and store.

Available in black color, this metal detector is not only functional but also aesthetically simple and professional-looking.

Detection Distances

1. 2-pin: 30–60mm
2. Coins: 75–100mm
3. 6-inch knife: 160–180mm
4. Gun: 180–195mm

Specifications

Technical Standard

Technical Parameter

Packaging Size

360mm × 150mm × 50mm

Working Frequency

About 20 KHz

Alarm System

Sound (or vibration) and light

Power Supply

Standard 6F22/15F8H 9V battery or optional rechargeable battery

Operating Temperature

-15°C to +55°C

Packing Quantity

17 per box, 6kg per box

Applications

This metal detector is widely used in various sectors, including:

  • Airports, railway stations, docks, customs, and public security for security checks
  • Medical and food quality inspection systems
  • Playground and public area safety inspections
  • Precious metal detection in jewelry manufacturing and gold/silver processing factories

Its versatility and reliability make it an essential tool for any environment where security and safety are top priorities.

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