Can the volume be adjusted?

Yes, the Car Units feature electronic volume control for convenient adjustment, and the microphone gain can be adjusted to control feedback.

Is the system suitable for extreme weather conditions?

Yes, the system is designed to operate in extreme weather conditions and features a heavy-duty composite Nylon Plastic enclosure for durability.

What are the common causes of communication failure?

Common issues include the protective ground wire of the coupler being grounded in the middle, poor connection causing high resistance, or interference from electric motors due to poor cable shielding.

Hot Selling Good Quality Construction Lift Intercom System

Name: Hot Selling Good Quality Construction Lift Intercom System
Brand: Shanghai Strong Engineering Construction Co., Ltd.
SKU: 745367362

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 communication to enhance safety and reduce emergency response time.

No RF License Required: Uses protection loop line transmission; no electromagnetic pollution or radio frequency application needed.

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

Extreme Weather Resistant: Operates reliably in extreme weather conditions with heavy-duty composite Nylon Plastic enclosure.

Customizable Frequency: Supports 3 kinds of frequency options (250KHz, 741KHz, 800KHz) to suit different site needs.

Safe 24V DC Power: Powered by safe 24 volts DC with backup battery supply for continuous operation.

Easy Installation: All units are interchangeable with no antenna wire required; simple loop line connection.

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.

Product Q&A

Q:Is this intercom system safe for use in construction elevators?

Yes, it is recommended by OSHA and considered the industry standard in the USA, Canada, and Australia. It operates on safe 24 volts DC and does not require radio frequency licenses.

Q:What are the available frequency options?

The system supports three frequency channels: 250KHz, 741KHz, or 800KHz, allowing customization based on site requirements.

Q:Does the system require special communication cables?

No, the signal transmission is carried out using a protection loop line. No special communication cable or antenna wire is required.

Q:How does the system handle emergency situations?

All units are equipped with emergency alarm switches. It allows workers to contact the elevator operator instantly in case of injury or heart attack, reducing downtime and liability.

Q:What is the effective range of the intercom?

The effective range is more than 300 meters, provided the conductor loop resistance is less than 600 ohms.