Why does the call status remain active after ending a call?

Because our administrator account can log on to multiple terminals at the same time, when the hat sos emergency call is sent to the background, the call status is at least 30 seconds, so that other administrators can answer the call.

How does the off-hat alarm trigger mechanism work?

The helmet is judged by the light sensor inside the hat whether it is in the hat state. When the user takes off the hat, the hat will be identifed as the scene of taking off the hat by the change of light intensity and distance, according to the assigned time of 'off-hat alarm delay time' assigned.

Why is the current height of the hat sometimes negative?

The initial height is defined at startup. The current hat height is negative when it is lower than the height defined at startup.

D6 Multi-Functional Smart Hard Hat Miners 4G Dual Card Video Intercom NFC Palm Scanner Android Operating System

Name: D6 Multi-Functional Smart Hard Hat Miners 4G Dual Card Video Intercom NFC Palm Scanner Android Operating System
Brand: Shanghai Strong Engineering Construction Co., Ltd.
SKU: 2245460455

Shanghai, ChinaShanghai Strong Engineering Construction Co., Ltd.

US$383.00-403.00

1 Piece

Product specifications

Color

Sample price:US$350.00/piece.Request sample

Product profile

Customization

Available

Type

Y Type

Material

ABS

Model NO.

Application

Petroleum, Chemical, Construction, Metallurgy, Electric Power Industry, Transportation

Hoop Size

57－60CM

Certification

CE, ISO, FCC, RoHS, GB 2811-2007

Wear Mode

Knob Type

Color

Red

Communication

4G&5g

System

Android 8.1

Internal Memory

4GB+64GB

Video Resolution

1080P 720p 30fps

Battery

5000mAh

Transport Package

Carton Box

Specification

301.8mm*228.2mm*149mm

Trademark

OEM/ODM

Origin

China

Production Capacity

15000pieces/Month

Key features

4G/5G Dual Card Intercom: Supports 4G and 5G communication with dual SIM card slots for reliable connectivity.

Built-in Camera & Video: Integrated camera with 1080P/720p video resolution for real-time monitoring.

Android Operating System: Runs on Android 8.1 with 4GB RAM and 64GB internal memory for smart functions.

NFC Palm Scanner: Equipped with NFC palm scanner for secure identification and access control.

Multi-Industry Application: Suitable for petroleum, chemical, construction, metallurgy, and power industries.

Safety Certifications: Certified with CE, ISO, FCC, RoHS, and GB 2811-2007 standards.

Long Battery Life: Features a 5000mAh battery for extended usage in outdoor industrial environments.

Custom Logo Printing: Supports custom logo printing on the supporter for brand personalization.

Company profile

Importers and ExportersYears of Export ExperienceSelf-brandedExhibition Experience

Shanghai Strong Engineering Construction Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤18h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanghai Strong Engineering Construction Co., Ltd. is a China-based trading company established in 2014, focused on lift accessories and related construction machinery, mechanical, electrical, and hardware products. The supplier reports five employees, overseas service limitations, no overseas warehouse, showroom, agent, or branch, and participation in bauma China. It offers customization from samples and designs but does not provide private mold development, 3D software design, ODM, OEM for popular brands, or SDK support. Product information indicates new products were developed during the past year. Service procedures and corrective-action records are documented, although the approved supplier list lacks signatures or dates. Audit information identifies TÜV Rheinland, but the evaluation result is recorded as 0 and the stated report validity ended on 2025-08-12. Production capacity, financial credibility, and customer case evidence remain insufficient for firm conclusions.

Supplier typeThe supplier is identified consistently as a trading company and limited company, with no larger-company group affiliation. Its stated scope covers lift accessories and a broad range of construction machinery, mechanical, electrical, metal, hardware, rubber and plastic, and automobile-related products.

After-Sales capabilityThe supplier reports written procedures and records for service-capability assessment, a corrective and preventive action mechanism, and ten qualified service-capability suppliers. It lacks overseas warehouses, showrooms, agents, and branches, although it has participated in bauma China and reports lead times within 15 workdays.

R&D capabilityThe supplier reports having launched new products during the past year, indicating some product-development activity. However, it does not offer ODM, private mold development, professional technical-supplier R&D, 3D software design, or SDK support.

Customization capabilityThe supplier explicitly offers customization from samples and designs. However, it does not provide private mold development or 3D software design services, so customization appears available in defined forms rather than as a full design-and-development service.