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Global Hi-Tech Pte. Ltd. - Singapore
HandHeld Metal Detectors
Model: GS-HHMD4599 | GS-HHMD3699
Product Overview
The Go-Scan Handheld Metal Detector (HHMD) series comprises compact, portable electronic instruments designed to locate and identify metallic objects at short range. Ergonomically designed for one-handed operation, these wand-shaped devices are purpose-built for prolonged security screening use.
Operating on electromagnetic induction coil technology, the HHMD generates eddy currents that create a secondary magnetic field when brought into contact with metallic objects — enabling precise, reliable detection. The series is widely deployed for Security Screening, Industrial Inspection, Construction work, and Hobbyist Treasure Hunting where precision and mobility are required.
Model Variants
GS-HHMD4599
Compact Rechargeable Wand Detector
- Slim ergonomic form with built-in 9V rechargeable battery and wrist strap
- 50-hour battery life with real-time indicator and low-battery warning LED
- Direct charge socket with optional wireless charger support
- Ideal for event screening, field inspections, and high-mobility deployments
- 3-way push button: ON / OFF / Momentary operation
GS-HHMD3699
Docking-Station Charged Professional Wand
- Dedicated fast-charge docking station included for continuous-shift operations
- Fast-charge indicator lights confirm charging status at a glance
- 50-hour battery life with audio + visual + vibration triple alert modes
- Purpose-built for airports, government buildings, and high-throughput venues
- Same rugged ABS construction and detection performance as the HHMD4599
Key Features & Benefits
Triple Alert Modes
Simultaneous audible buzzer, visual LED indicator, and vibration alarm ensure operators receive detection alerts even in high-noise environments or where discreet screening is required.
50-Hour Battery Life
Extended operational endurance on a single charge with real-time battery indicator. Low-battery warning LED prevents unexpected downtime during active screening operations.
VLF & Pulse Induction Technology
Dual-technology detection enables reliable identification of both ferrous and non-ferrous metals, including non-magnetic metallic objects across all three sensitivity levels.
Safe for Parturient Women
Emission levels certified safe for use on pregnant individuals — meeting NABL India and international standards for public access and healthcare screening environments.
Automatic Calibration
Self-calibrating sensor array eliminates manual threshold adjustment — ready for immediate deployment in any environment with consistent detection accuracy.
Digital Frequency Filtering
Selectable operational frequency allows operators to tune sensitivity and minimise false positives in high ambient electromagnetic interference environments.
3 Detection Levels
Level 1 covers large knives, handguns, and foil-wrapped packets. Level 2 targets razor blades and handcuff keys. Level 3 enables detection of calibre bullets and metallic shanks as small as 0.6 cm.
Certifications
NABL – India Certified | CE | FCC | AERB Compatible. Certified safe for use on parturient women and meets international emission standards for public-access screening environments.
Wide Application Range
Deployed across airports, government buildings, courts, prisons, large-scale events, industrial sites, and construction projects where precision, portability, and one-handed operation are priorities.
Technical Specifications (Both Models)
| Parameter | Specification |
|---|---|
| Power Supply | 9V Rechargeable Battery with Indicator |
| Battery Life | 50 Hours on Single Charge |
| Alert Modes | Simultaneous Audible Alarm / Visual LED / Vibration |
| Length | 340 mm |
| Probe Width | 80 mm |
| Body Width | 50 mm |
| Weight | 350 g |
| Operating Temperature | −20°C to +55°C |
| Operating Humidity | Up to 95% RH (non-condensing) |
| Material | Grey, Shock & Impact-Resistant ABS Plastic |
| Operation | 3-Way Push Button: ON / OFF / Momentary |
| Indicator Lights | Power ON: Green | Alarm: Red | Low Battery: Yellow |
| Certifications | NABL – India, CE, FCC, AERB Compatible |
| Warranty | 12 Months (Extended available on request) |
Model Comparison
| Specification | GS-HHMD4599 | GS-HHMD3699 |
|---|---|---|
| Product Type | Compact Rechargeable Wand | Docking-Station Wand |
| Battery Life | 50 Hours | 50 Hours |
| Charging Method | Direct Charge Socket | Fast-Charge Docking Station |
| Docking Station Included | — | ✓ Included |
| Optional Wireless Charger | ✓ Supported | — |
| Alert Modes | Audio + Visual + Vibration | Audio + Visual + Vibration |
| Detection Levels | 3 Levels | 3 Levels |
| Ferrous Detection | ✓ | ✓ |
| Non-Ferrous Detection | ✓ | ✓ |
| Dimensions (L × W) | 340 × 80 mm | 340 × 80 mm |
| Weight | 350 g | 350 g |
| Certifications | NABL, CE, FCC | NABL, CE, FCC |
| Best For | Mobile / Field Screening | Fixed Checkpoint Ops |
Sensitive Detection Performance
Level 1
- Large knives up to 15 cm
- Razor blades up to 8 cm
- Automatic small handguns
- Foil-wrapped drug packets
- Knives up to 23 cm (pistol-sized)
- Small metallic pins up to 3 cm
Level 2
- Razor blades
- Handcuff keys
Level 3
- Calibre bullets
- Metal shanks up to 0.6 cm
Ideal Applications
Airport & Aviation Security
Secondary screening at passenger boarding gates, crew checks, and airside access control. Both models meet operational demands of high-throughput aviation environments.
Government & Institutional Buildings
Visitor screening at courts, parliament buildings, embassies, and government offices where continuous checkpoint operation demands dependable battery endurance.
Event & Venue Security
Large-scale public event screening — concerts, sports venues, exhibitions — where mobile wand operation and extended battery life reduce operational disruption.
Industrial & Manufacturing Sites
Access control screening at factory gates and warehouse checkpoints, detecting unauthorised metallic items entering restricted zones or production areas.
Correctional & Detention Facilities
High-sensitivity Level 3 detection — calibre bullets and shanks to 0.6 cm — makes both models suitable for corrections environments requiring the highest detection capability.
Construction & Field Inspection
Field inspection for embedded metals in construction and hobbyist treasure hunting where precision, portability, and one-handed operation are key priorities.
Why choose Global Hi Technologies
Extended Field Endurance
50-hour battery life on a single charge ensures uninterrupted screening across full operational shifts without mid-shift downtime — critical for airports, events, and high-throughput venues.
Triple-Mode Alerting
Simultaneous audible, visual, and vibration alerts ensure no detection is missed regardless of environment noise levels or discreet screening requirements in sensitive settings.
Rugged Field-Ready Construction
Shock-resistant and impact-resistant ABS plastic housing withstands continuous field use, drops, and demanding security environments without performance degradation over extended service life.
System Design & Integration
Custom security inspection solutions engineered for your operational workflow. Professional installation, commissioning, and on-site operator training for every deployment.
Long-Term Support & Warranty
Aftersales service with ongoing maintenance, calibration support, and technical assistance. Standard 12-month warranty on all units with extended warranty available on request.
Frequently Asked Questions
Which model is right for a fixed security checkpoint?
The GS-HHMD3699 is the preferred choice for fixed checkpoints. Its dedicated fast-charge docking station allows the wand to be returned between uses for continuous charging, ensuring it is always ready for the next screening without manual battery management.
Which model suits mobile or outdoor field operations?
The GS-HHMD4599 is better suited for mobile and field use. Its direct charge socket and optional wireless charger support make it more flexible in environments where a fixed docking station is impractical.
Can these detectors identify non-magnetic metals?
Yes. Both models use Very Low Frequency (VLF) and Pulse Induction technologies, enabling detection of both ferrous and non-ferrous metals, as well as non-magnetic metallic objects.
Are these detectors safe for use on pregnant individuals?
Yes. Both models are certified safe for use on parturient (pregnant) women under NABL India certification, meeting the emission and safety standards for public access screening environments.
How do the three detection sensitivity levels work?
Detection sensitivity is configured via the sensitivity adjustment control. Level 1 covers standard threat items (knives, handguns, drug packets). Level 2 targets smaller items like razor blades and handcuff keys. Level 3 enables detection of extremely small metallic threats such as calibre bullets and shanks down to 0.6 cm.
What operating conditions do these detectors require?
Both models operate reliably between −20°C and +55°C, with humidity up to 95% non-condensing. Shock-resistant ABS plastic construction supports continuous field use across a wide range of environmental conditions.
Request a Consultation
Looking for a reliable handheld metal detection solution for your facility? Contact Global Hi-Technologies today for expert consultation and customised security screening solutions.
