What are the payment terms accepted?

We accept LC, T/T, D/P, PayPal, and Western Union as terms of payment.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-season periods.

How should the protective ground wire be installed?

The protective ground wire must pass through the coupler hole and be connected to the ground; it cannot be grounded in the middle.

Safe Smart Construction 3 Frequencies Intercom and Remotely Video WiFi Doorbell

Name: Safe Smart Construction 3 Frequencies Intercom and Remotely Video WiFi Doorbell
Brand: Shanghai Strong Engineering Construction Co., Ltd.
SKU: 702361651

Shanghai, ChinaShanghai Strong Engineering Construction Co., Ltd.

US$198.00-228.00

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Usage

Telephone

Type

Wired

Information content

Voice

Certification

CE, ISO

Condition

New

Frequency

3 Kinds

Quantity

Depends on Floors

Transport Package

Carton Box

Specification

the phone is 200*120*50mm

Trademark

STRONG

Origin

Shanghai

HS Code

84313900

Production Capacity

30000 Pieces/Year

Key features

OSHA Recommended Safety: Industry standard for construction hoists, recommended by OSHA for safer work environments.

3 Frequency Channels: Supports 250KHz, 741KHz, or 800KHz to prevent interference in intensive construction areas.

No RF License Required: Uses protection loop line transmission, avoiding electromagnetic pollution and radio frequency applications.

Emergency Alarm System: Features emergency alarm switches and mute function to ensure critical communication safety.

Durable Construction: Heavy-duty composite Nylon Plastic enclosure with backup battery power supply for reliability.

Customizable Options: Customization available from samples or designs, with frequency and quantity depending on floors.

Clear Two-Way Voice: Crystal clear voice communication with electronic volume control and microphone gain adjustment.

Safe 24V DC Operation: Powered by safe 24 volts DC, ensuring safety in industrial elevator and hoist environments.

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: ≤15h 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.