handheld metal detector mobile phone knife gun metal detector md3 003b1 single switch 手持 金 属探 测仪 手机刀 枪金 属探测 器MD3 003B1单开关款

Warm reminder: This productNot for useCheck for broken nails in wood, plastic lighters, gold and silver jewelry, colored or rare metals.

1. Schematic Diagram:

1. Detection surface

2. Charging socket        3. Low sensitivity switch

4. LED lights (green indicates power status; red indicates alarm status)

5. Buzzer sound hole 6. Sensitivity adjustment/retention function (hidden)

7. Handle                                 8. Power switch (switch for audio-light and vibration modes)

9. Battery Cover

II. Purpose:

1. Inspection of stations, stadiums, and docks;

2. Examination rooms, schools, security inspections;

3. Inspection of bars, KTVs, couriers, internet cafes, and hotels;

III. Detection Range:

1. One-yuan coin         1–3 cm;

2. Standard wallpaper blade: 3–5 cm

3. Type 64 pistol 8~12 cm

4. Apple 12 phone 5~10 cm

IV. Usage Instructions:

1. Push the power switch (8). When a “click” sound or vibration is heard, it indicates that the power is connected, and the green light will turn on. If there is no sound or vibration, it means the battery is not installed or has poor contact. If the alarm continues continuously, it indicates that the battery is no longer usable, and a new battery should be replaced.

2. After the sound starts to stop upon power on, high-sensitivity detection can be performed. By holding the handle, the detection surface scans around the object being measured. An alarm is triggered when metal is detected, and at the same time, the green light turns red; when scanning stops, the alarm ceases, and the red light turns green.

3. Low Sensitivity Test: If small objects in metal items need to be excluded, press the low sensitivity switch (3). A scan is performed around the object being tested; an alarm will be triggered when metal is detected, and the green light will turn red. When the scan stops, the alarm ceases, and the red light turns green. Since the sensitivity is reduced by more than 5 times, what is detected at this time are usually larger metal objects.

5. Precautions:

1. Do not forget to turn off the power after use.

2. If not used for a long time, remove the battery to prevent leakage, which could cause serious damage to the detector. When the battery power is low, please replace it promptly or use it after charging to avoid false alarms.

3. No alarm will occur when the probe is fixed against a metal object; it only emits sound or vibration alarms when passing over a metal object.

4. When charging, please turn off the power switch (8).

5. Charger voltage: AC 9V; DC 10V.

6. Please use rechargeable batteries during charging; disposable batteries must not be charged. (Charging is optional)

6. Technical Parameters:

Power Supply: 9V standard batteries or rechargeable batteries

Power consumption: 270 mW

Working frequency: 22KHZ

Standby current: <5mA

Working voltage: DC 7~12V

Working temperature: -10℃ to +65℃

Net weight: 230g

Size: 4.1 (length) * 8.5 (width) * 4.5 (height) cm

ANo batteriesBoxing packaging dimensions and weight for the entire box: 5.5×4.4×2.7 cm