What is the power supply requirement for this unit?

It operates on safe 24 volts DC and includes a backup battery power supply for the car unit.

Can the volume be adjusted on this intercom?

Yes, it features electronic volume control and microphone gain adjustment for convenient volume management.

Is this product certified for safety?

Yes, it holds CE and ISO certifications and is recommended by OSHA as an industry standard.

New Battery Operated Wireless Intercom for Construction Hoist

Name: New Battery Operated Wireless Intercom for Construction Hoist
Brand: Shanghai Strong Engineering Construction Co., Ltd.
SKU: 702322171

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.

Three Frequency Options: Available in 250KHz, 741KHz, or 800KHz to suit different site requirements.

No Antenna Required: Utilizes protection loop line for signal transmission, eliminating need for external antennas.

Emergency Alarm Function: Features dedicated alarm switches on all units for immediate emergency communication.

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

Safe Low Voltage Power: Operates on safe 24 volts DC with backup battery power supply for reliability.

Volume Control System: Electronic volume control with microphone gain adjustment to prevent feedback.

No Radio Frequency License: No electromagnetic wave pollution; no radio frequency application needed for use.

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: ≤24h 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:What frequencies are available for this intercom?

Three frequencies are available: 250KHz, 741KHz, or 800KHz.

Q:Does this system require an antenna?

No, the system uses a protection loop line for signal transmission and requires no antenna wire.

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.

Q:What causes communication failure in this system?

Communication failure is often caused by the protective ground wire being grounded in the middle ground, poor connections, or interference from electric motors.

Q:Is this product suitable for extreme weather?

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