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 field 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.
Project-Specific Expansion Interface
A reserved interface can be evaluated for project-specific peripherals. Module availability, software integration, minimum order quantity, and combined-device validation must be confirmed for each project.
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 the terminal to use a complete monitoring platform, connect with an existing enterprise system, or run your own APK and backend.
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
The complete model specification table is maintained on a separate technical page so this overview stays focused on product fit, capabilities, and deployment options.
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 customer backend or optional monitoring software 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.
Complete Monitoring Platform Workflow
For teams that want ready-to-use operations, G901 Helmet-mounted Recorder (Retrofit) can be evaluated with the complete monitoring platform for selected GPS, alert-management, communication, media, and operational-visibility workflows.
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 field 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.
How can G901 fit your system?
Keep compatible existing helmet shells while selecting the software approach that suits your team. Helmet and bracket compatibility, local PPE policy, required functions and the final system architecture are confirmed during the pilot.
Complete Monitoring Platform
Use established device management, location, supported alerts, communications, playback and administration without building the entire operational application.
Enterprise Integration
Keep supported device and operational services while project-confirmed data, events and media connect to your safety, command, video or enterprise platform.
Customer-Owned APK & Backend
Build your Android application and backend for G808 or G901. Your team owns application logic, protocols, security, storage, updates and maintenance.
Confirm the product and software path together
For G901, share the existing helmet model and inner-brim photos so mounting can be reviewed. The pilot should also confirm device functions, application ownership, data and media flows, network behavior and acceptance criteria.
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.
Customization 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). |
See the G901 and Monitoring Platform in Action
Watch how the G901 helmet-mounted smart recorder connects field personnel with live video, voice communication, GPS tracking, safety alarms, device management, and platform playback and evidence review.
G901 Helmet-mounted Recorder (Retrofit) — Features Overview (4G Video, GPS, SOS, PTT)
G901 Smart Helmet Monitoring Platform — Full Demonstration
See the complete G901 workflow, including platform administration, device and group management, live video, voice communication, messaging, GPS tracking, electronic geofences, safety alarms, and media playback.
Need help evaluating the G901 for an existing helmet fleet? Tell us your helmet type, project quantity, network environment, platform deployment preference, and integration requirements.
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?
Standard package contents and quantities are confirmed with the selected configuration and quotation. Battery rotation, charging, mounting, storage, and documentation requirements can be specified for the project.
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 G901 support project-specific peripheral integration?
A reserved expansion interface is available for project-specific peripheral evaluation. The exact module, software path, minimum order quantity, validation scope, and availability must be confirmed before quotation.
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Procurement & Customization
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