Security screening · Handheld
Secondary-screening detectors for use after a walk-through gate, at event entrances, and wherever an officer needs to locate a concealed metallic object on a person or inside a package.

Handheld detectors are the second layer after a walk-through gate, and often the only equipment deployed at smaller checkpoints. What matters operationally is that the officer can sweep accurately for a full shift: a light unit with a stable, repeatable response and no ambiguous signals.
The MD-3003B1 weighs 409 g and runs on a single 9 V battery, standard or rechargeable. Detection is signalled by audio tone and a red LED, with a silent vibration mode for noisy environments or for screening where an audible alarm would draw attention.
A low-sensitivity switch suppresses small items such as coins, keys and pins while still alarming on handguns and knives, which is what most checkpoints actually want. Sensitivity is tuned in seconds with a single adjuster, and no calibration equipment is required.

Models differ mainly in sensitivity, alert type and housing. Tell us the screening environment and we will recommend a unit and supply the sensitivity settings.
| Model | Alert | Positioning |
|---|---|---|
| MD-3003B1 | Audio + LED, vibration mode | General body screening, gate backup, event entry |
| TS-P1001 | Audio + LED, vibration | High-sensitivity screening, controlled checkpoints |
| PD-140 | Audio + LED | Court, prison and customs secondary screening |
| GP-008 / GC-1001 | Audio + LED | Volume deployments and budget-sensitive projects |
Reference configuration: MD-3003B1.
| Power supply | 9 V standard or rechargeable battery |
|---|---|
| Operating voltage | 7 V – 9 V |
| Operating current | < 50 mA |
| Power consumption | 270 mW |
| Operating frequency | 22 kHz |
| Charging time | 4 – 6 hours (unit switched off during charging) |
| Dimensions (L × W × H) | 41 × 8.5 × 4.5 cm |
|---|---|
| Net weight | 409 g |
| Operating temperature | -5°C to +55°C |
| .38 calibre handgun | 15 cm (6 in) |
|---|---|
| Pen knife | 10 cm (4 in) |
| Razor blade | 5 cm (2 in) |
Secondary screening of visitors and returning staff.
Body screening where a gate is not practical.
Entry screening across multiple lanes with handheld units.
Checking packages by hand for concealed metal.
Not by material, but the low-sensitivity mode does. In that mode the detector ignores small items such as coins, keys and pins and responds only to larger metal objects such as handguns and knives.
The unit runs on a 9 V battery with a current draw under 50 mA. Actual battery life depends on the battery used and how often alarms are triggered. Rechargeable cells charge in four to six hours and the unit must be switched off while charging.
The operating range is -5 to +55 degrees Celsius and the housing is a hand-held format that works with gloves. For permanent outdoor checkpoints we recommend confirming the specific model against your climate and handling requirements.
No calibration equipment is needed. Sensitivity is tuned with the adjuster: turn clockwise until the red LED lights, then counter-clockwise until it goes out.
One per screening lane, plus spares to cover charging and battery changes across shifts. Tell us your lanes and shift pattern and we will size the order with you.
Tell us the country of installation and the intended use, and we will send the full technical catalogue and pricing.
Contact: Brandon, Sales Manager
Email: deal@topsaful.com
Tel / WhatsApp: +86 156 1616 8054
We usually reply within one business day.