G901 Helmet-mounted Recorder (Retrofit)
G901 is a retrofit helmet-mounted recorder that upgrades standard safety helmets with 4G video, GPS tracking, SOS, intercom, and multi-alarms—without replacing existing helmets.
What is the G901 Helmet-Mounted Recorder?
G901 is a detachable helmet-mounted smart recorder for teams that want video, voice communication, GPS tracking, safety alerts, and platform connectivity without replacing their existing compatible safety helmets.
G901 separates the smart device from the helmet shell. It is designed for retrofit projects, existing PPE fleets, system integrators, OEM evaluations, and teams that need a modular smart terminal for field visibility, communication, recording, positioning, and alert workflows.
Existing helmet fleets
Teams that already use preferred or locally compliant helmet shells and want to add smart recording and communication capability.
Retrofit field visibility
Helmet-mounted video, voice coordination, GPS positioning, safety alerts, local storage options, and platform-connected monitoring.
Integrator and OEM friendly
Suitable for system integrators, OEM/ODM projects, sample testing, and project teams evaluating smart helmet functionality.
Need a complete helmet?
If your project needs the helmet shell and smart electronics delivered together, compare G901 with the G808 integrated smart safety helmet.
Product Gallery
Key Features
Retrofit to Existing Helmets
Mounts to standard safety helmets using a bracket system, helping teams digitize safety management without changing current helmets.
4G Video Call & Real-time Monitoring
Supports video calls with the management backend for real-time现场 verification and remote supervision workflows.
GPS Tracking + Route Playback
Uploads location to the backend at configurable intervals and supports route playback for dispatching and incident review.
SOS + Broadcast + Group Intercom (PTT)
SOS long-press for emergency escalation, plus push-to-talk group intercom and backend voice/text broadcast (optional TTS).
Geofence + Danger Zone Alert
Define attendance/work areas and danger zones in the backend; alarms trigger immediately when a person enters a restricted area.
Multi-alarms (Impact / Stay-still / Helmet-off / Near-electric / Height)
Built-in sensors support multiple safety alarms including impact, loitering, helmet-off, near-electric proximity, and working-at-height alerts.
Rugged & Safety-rated (IP66 / 1.5m Drop / Ex option)
Designed for harsh environments with IP66 protection, drop test performance, and an explosion-proof option for hazardous sites.
Expandable via Reserved Interface
Reserved PIN interface supports external modules such as gas monitoring or vital-sign modules for project-specific customization.
When should you choose G901?
G901 is the right fit when the buyer wants a detachable smart recorder module instead of replacing the full helmet fleet.
Your project needs a modular smart helmet terminal
Your team already uses preferred safety helmets and wants to add video recording, communication, positioning, and alarm functions.
You need a detachable device for retrofit projects, sample testing, mixed helmet fleets, or system integration evaluation.
You want smart helmet data to connect with cloud platform, on-premise deployment, or integration discussions depending on project scope.
Your project needs a complete smart helmet product
You want the helmet shell, smart terminal, camera, battery, and safety functions delivered as one integrated product.
Your procurement team prefers a finished smart safety helmet rather than a detachable add-on module.
Your deployment does not need to preserve existing helmet shells or bracket-based mounting.
Need to confirm helmet compatibility?
For G901 projects, share your helmet type, mounting requirements, expected quantity, network environment, platform deployment preference, and integration needs. HelmetSight can help evaluate whether G901 is suitable for your existing helmet fleet.
Positioning & Connectivity
Positioning
Connectivity
Technical Specifications
View Full Specifications| Specification | Value | Unit | Notes |
|---|---|---|---|
| Name | Helmet-mounted Recorder (under-helmet hanging type) | ||
| Model | G901 | ||
| Dimensions | 232 × 232 × 34 | mm | |
| Weight | ≤ 300 | g | |
| CPU | 12 nm octa-core 2.0 | GHz | |
| OS | Android 12 | ||
| RAM | 4 | GB | |
| ROM | 64 | GB | |
| Storage Expansion | up to 512 | GB | TF (microSD) |
| SIM Slot | 1 | ||
| Camera | ~4 MP industrial-grade | Optional higher configs available | |
| Wide Angle | ≥120 | ° | |
| Camera Rotation | ±50 | ° | Up/down |
| Display | 0.96" 80×160 | ||
| WiFi | 2.4G + 5G | AP supported | |
| Bluetooth | 5.0 | ||
| Battery | 3000 | mAh | Removable; backup 80mAh |
| Charging Time | ≤4 | hours | 5V 2A charger |
| Standby Time | ≥48 | hours | |
| IP Rating | IP66 | ||
| Drop Test | 1.5 | m | |
| Operating Temperature | -25 to 60 | °C |
Compliance & Protection
IP Rating
Waterproof & Dustproof
Explosion-Proof Configuration
Explosion-proof or hazardous-environment requirements should be confirmed against the target project, local standard, and available certification documents before procurement.
Certifications
Compliance Proofs
Tested for 1.5m drop resistance (report available upon request).
Explosion-proof option for hazardous environments (provide target standard/market for confirmation).
IP66 rated for dust and water protection (verify with your project requirements).
Applications
Construction Site Operations
Retrofit existing helmets with 4G video, GPS tracking, SOS, and PTT intercom for safer, better-coordinated job-site operations.
Construction Site Safety
Utility And Power Operations
Upgrade standard helmets for city maintenance crews with 4G video, GPS tracking, SOS alerts, and hands-free coordination in daily operations
Utility And Power Operations
Emergency Rescue
Improve dispatch and site awareness with GPS tracking, SOS escalation, and real-time video communication during rescue missions.
Emergency Rescue
Telecommunications Field Operations
Support tower and field crews with hands-free communication, GPS tracking, and incident evidence capture—without changing current helmets.
ContactFeature Highlights
Core Specifications Overview
A quick view of key device parameters for evaluation and procurement, including storage, battery, camera, and ruggedness highlights.
Night Light Performance
Integrated lighting design supports low-light work and improves visibility during night operations.
Large-capacity Battery for Long Shifts
Built for long working hours with a high-capacity removable battery to reduce charging frequency.
Infrared or Anti-shake Camera Option
Optional infrared camera configuration supports clearer recording in dim environments or Anti-shake camera helps reduce motion blur during walking, climbing, and rapid site movement.
GPS Tracking & Location Upload
Supports GPS-based tracking and location upload to the platform at configurable intervals for dispatch and supervision.
Ultra-wide Angle Recording (120°)
Wide field-of-view captures more of the scene in a single frame, useful for evidence and site review.
Adjustable Camera Angle (±50°)
Camera module supports angle adjustment to fit different helmet positions and wearer heights.
One-touch Operation (Key Functions)
Dedicated buttons support quick actions such as SOS, intercom/PTT, recording, and other workflow shortcuts.
Near-electricity Proximity Alarm
Proximity warning helps reduce risk when approaching energized equipment by triggering alerts based on configured thresholds.
Waterproof Charging Port (Type-C)
Sealed Type-C charging interface supports use in outdoor and harsh environments while maintaining rugged protection.
Platform Monitoring & Workflow
G901 Helmet-mounted Recorder (Retrofit) can work with a monitoring platform for GPS tracking, alert management, and operational visibility.
Real-time GPS Map Tracking
Track crew locations on a live GPS map view and support dispatching during field operations. Works well for telecom maintenance, municipal work, and incident response workflows.
Monitoring Console (Map + Video Wall)
Combine map-based tracking with monitoring panels for operational visibility. Useful for supervisors to coordinate teams and review现场 status in real time.
Alerts & Operations Dashboard
View recent alerts, device/user status, and basic operational analytics on a single dashboard. Supports post-incident review and daily safety management.
Deployment & Services
Choose the deployment model that fits your infrastructure and compliance requirements.
Cloud (SaaS)
Fast onboarding with a managed platform option for teams that want to go live quickly.
On-premise Deployment
For customers with strict data control requirements and local infrastructure.
Integration (API/SDK)
Connect device data and events into your existing platform and workflow.
Custom Development
Discuss customization for hardware, structure, features, and project delivery.
Product Structure
Detachable Retrofit Structure (Mounting System)
G901 is designed as an under-helmet hanging recorder with a detachable mounting system. Different clip/bracket options support common helmet inner-brim structures for stable installation and easy removal.
Standard Hard Hats (Non-vented & Vented) — Clip Options A/B
Compatible with common standard hard hats, including non-vented and vented types. Clip options A/B help match different inner-brim geometries; share helmet photos so we can confirm the best fitment before deployment.
Fiberglass Helmets — Clip Option C (Fitment-based)
Fiberglass helmet shells often have different brim structure and mounting space. Clip option C is used for fitment-based installation, ensuring the recorder is securely mounted and aligned for daily operation.
What's in the Box
Carrying Bag
×1Helmet-mounted Recorder (G901)
×1Type-C Data Cable
×1User Manual
×1Customization Options
| Option | Method | MOQ | Input Required | Notes |
|---|---|---|---|---|
| Helmet mounting bracket selection | Bracket A/B/C (fitment-based) | 1 | Helmet photos + helmet model/type + inner brim measurements (if available) | We recommend the best bracket option after fitment check. |
| Team logo & name (branding) | Crystal sticker (low MOQ) / Spray painting (bulk orders) | Sticker: 1 unit | Spray painting: 50 sets | Vector logo (AI/SVG/PNG) + name text + preferred placement | Artwork preview will be confirmed before production. No pricing shown online—request a quote. |
| Reflective sticker layout (night visibility) | Custom reflective sticker | 1 unit | Desired text/icon + placement requirement (left/right/rear) | Recommended for night operations and traffic environments. |
| Color scheme / shell appearance | Sticker wrap (low MOQ) / Spray painting (bulk orders) | Sticker: 1 unit | Spray painting: 50 sets | Color reference + logo file (optional) + placement requirement | Final color depends on material and production process; confirm with mockup (and sample if needed). |
Product Videos
G901 Helmet-mounted Recorder (Retrofit) — Features Overview (4G Video, GPS, SOS, PTT)
Frequently Asked Questions
Can G901 be used without replacing our current helmets?
Yes. G901 is a retrofit recorder designed to be mounted to standard safety helmets using a bracket set. Share helmet photos so we can confirm fitment.
Does G901 support GPS tracking and route playback?
Yes. G901 can upload location to the backend at configurable intervals and supports track playback for dispatching and incident review.
What alarms are supported?
G901 supports multiple alarms such as impact, stay-still (loitering), helmet-off, near-electric proximity, and working-at-height alerts (configurable by workflow).
What is included in the standard package?
The package includes the G901 unit, batteries, a charging dock, power adapter, Type-C cable, mounting bracket set, carrying bag, and user manual.
Can the backend broadcast messages to workers?
Yes. The backend supports voice broadcast and text message push (optional TTS playback), useful for evacuation or urgent notifications.
Can we integrate extra modules like gas monitoring?
A reserved interface supports connecting external modules such as gas monitoring or other project-specific peripherals. Please share your module requirements for evaluation.
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Procurement & Customization
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