WD‑SJ300 Hand‑Held Mobile Phone & Metal Detector
- 发布日期：2026-08-24
- 访问量：1002 次
- 产品特性
Product Features
l In mobile phone detection mode, the device works by sensing signals from the middle shell of mobile phones, so it delivers high recognition performance and triggers alarms for non-ferrous (non-magnetic) metals such as gold, silver, copper, aluminum and tin.
l It will not alarm for common ferrous (magnetic) metals including iron, steel and magnets. Ferrous metals far heavier than a standard mobile phone cannot be filtered out and will also trigger an alarm. For metals in composite materials, the detection result is uncertain and depends on the distribution and strength of their magnetic properties.
l Metal detection mode: The detector boasts high sensitivity and can easily identify metal objects as small as a paper clip.
l Equipped with a leather holster for easy portability.
l Green power-on ambient indicator light; flashing green light indicates normal operation under power-saving mode.
l Two alarm modes are available for manual flexible selection: sound-light alarm and vibration-light alarm.
l Low battery warning function with red indicator light reminder.
l Built-in high-capacity rechargeable lithium battery supports 10 hours of continuous operation.
l Built-in charging function with 4–6 hours charging time: red light stays on during charging, and green light illuminates once fully charged.
Product Parameters
Model
WD-SJ300 Handheld Mobile Phone & Metal Detector
Weight
0.58kg (including battery)
Power Consumption
270mW
Working Power Supply
Built-in rechargeable lithium battery, equipped with direct charger for use
Operating Frequency
22KHz
Operating Current
＜50mA
Operating Temperature
-25℃ ~ 65℃
Relative Humidity
0~95% non-condensing
Overall Dimensions
410mm (L) × 66mm (W) × 43mm (H)
Packaging Dimensions
440mm × 280mm × 530mm
Gross Weight
420g
Type-C Charging Port
Optional
Alarm Modes
Synchronous sound / vibration / light alarm
Remark
When alkaline batteries are used with 10%-15% alarm duty cycle, the continuous working time can exceed 60 hours
Detailed Description of Technical Indicators & Performance
Battery Capacity
800mAh rechargeable lithium battery; standby time 100 hours, continuous working time 60 hours
Detection Accuracy
Able to detect 8mm metal objects or 0.30g metal wires
Detection Distance
Able to detect 8mm metal objects or 0.30g metal wires6-inch dagger: 160-180mm;20mm diameter steel ball: 120mm;1 RMB coin: 75-100mm
Sensitivity Adjustment
Sensitivity adjustable via potentiometer
Magnetic Radiation Intensity
During operation, magnetic induction intensity on any surface/point of the device ≤ 10μT
Anti-interference Performance
Multiple units can work normally without interference when spaced 0.2m apart
