Can the system operate in extreme weather conditions?

Yes, the heavy duty composite Nylon Plastic enclosure allows it to operate in extreme weather conditions.

What is the minimum order quantity?

The minimum order quantity is 1 Pc.

What are the payment terms accepted?

We accept LC, T/T, D/P, PayPal, and Western Union.

3 Frequencies Interphone Intercom Construction Security Systems

Name: 3 Frequencies Interphone Intercom Construction Security Systems
Brand: Shanghai Strong Engineering Construction Co., Ltd.
SKU: 745361502

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, Workstation, Server, Mobile phone

Type

Wired

Model NO.

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: Recommended by OSHA and considered industry standard in USA, Canada, and Australia.

Crystal Clear Communication: Provides clear voice intercom to enhance safety and productivity on construction sites.

No Radio Frequency Needed: Uses protection loop line signal transmission without electromagnetic wave pollution.

Emergency Alarm Function: Equipped with emergency alarm switches on all units for immediate worker assistance.

3 Frequency Options: Supports 250KHz, 741KHz, or 800KHz channels to prevent interference between units.

Safe 24V DC Operation: Powered by safe 24 volts DC with backup battery power supply for car units.

Durable Nylon Enclosure: Heavy duty composite Nylon Plastic enclosure designed for extreme weather conditions.

Customizable Frequency: Frequency is customizable with 3 kinds of options depending on floor quantity.

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.