What is the maximum flight altitude supported?

The system supports flight altitudes of 100 meters or higher with the 110m cable.

How does the system handle cable management?

It features an intelligent winch that automatically follows the drone's takeoff and landing for cable retraction.

Tethered Drone System for Dji M400 Rtk, Continuous Hovering for Security Patrol & Emergency Lighting Mission

Name: Tethered Drone System for Dji M400 Rtk, Continuous Hovering for Security Patrol & Emergency Lighting Mission
Brand: Nanjing Rosefinch Technology Co., Ltd
SKU: 2315297435

Jiangsu, ChinaNanjing Rosefinch Technology Co., Ltd

US$7,799.00

1-4 Pieces

US$7,480.00

5+ Pieces

Sample price:US$7650.00/set.Request sample

Product profile

Customization

Available

Ground Power Module Input Voltage

190-240VAC

Ground Power Module Output Voltage

700-750VDC

Ground Power Module Output Power

≥3500W (Rated Long-Time Output)

Ground Power Module Size

D360*W186*H268 ±0.5mm

Ground Power Module Weight

12.5 ±0.2kg

Tether Cable Length

Standard 110m, Optional 55m.

Tether Cable Outer Diameter

2.5±0.1mm

Tether Cable Weight

12.0±1G/M

Air Module Input Voltage

580-810VDC

Air Module Output Voltage

51.8 ± 0.5VDC

Air Module Output Power

3000W (Rated Long-Term Output)

Air Module Size

160*94*49 ±0.5mm

Air Module Weight

995 ± 10g

Optional Lighting

800W

Gross Weight

24.0±0.5kg

Transport Package

Aviation Hard Box

Specification

550× 450× 450± 5mm

Trademark

Rosefinch

Origin

Nanjing, China

HS Code

8504401990

Production Capacity

500/Year

Key features

48-Hour Continuous Hovering: Enables stable, non-stop flight for up to 48 hours with tethered power station.

Optional Cable Lengths: Available in standard 110m or optional 55m tether cable configurations.

Lightweight and Portable: Compact design allows single-person carrying and rapid field deployment.

Intelligent Winch Control: Automatically retracts cables during drone takeoff and landing without manual intervention.

Backup Power for Safety: Built-in backup battery ensures emergency cable retraction during sudden power outages.

Real-Time Touch Screen: 4.3-inch display shows voltage, current, temperature, and fault logs in real time.

Multiple Electrical Protections: Features overvoltage, undervoltage, overcurrent, and short circuit protection mechanisms.

Flexible Communication Options: Supports USB Type-C, RJ45, Bluetooth 5.0, and optional fiber optic transmission.

Company profile

Nanjing Rosefinch Technology Co., Ltd

Jiangsu, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤3.59h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company with business activities covering technology services, unmanned aerial vehicle sales, electrical and electronic equipment, software, security and fire equipment, and import/export. It holds ISO 9001 and ISO 14001 certifications and reports ODM and OEM capabilities, including products designed for several DJI drone platforms. Customization is offered from designs and samples, with full, minor, and flexible customization options. Production information indicates tether power system output of 500 pieces, while the supplier reports fewer than five quality-control staff and six to ten years of R&D engineer experience. Service procedures exist for corrective actions and customer complaints, but quality assurance status is unknown. The supplier lacks overseas showrooms, overseas agents or branches, and offline trade-show participation. Financial records are referenced for 2020–2022, but no performance values are provided, so financial credibility cannot be determined.

Supplier typeThe supplier is explicitly classified as a trading company. Its stated scope also includes technology services, equipment and electronic-product sales, software, and import/export activities, indicating a broad commercial and technical business profile rather than a clearly identified manufacturing-only entity.

CertificationsThe supplier reports holding ISO 9001 and ISO 14001 certifications. These are explicit management-system certifications and provide positive evidence for quality and environmental management, although no certification validity dates or scope details are supplied.

After-Sales capabilityThe supplier has documented procedures and records for corrective and preventive actions and customer complaints, and reports lead times within 15 working days in both peak and off-season periods. However, it has no overseas showroom, overseas agent or branch, or offline trade-show participation, and its service-capability assessment procedure lacks a written procedure, limiting evidence of broad overseas support.

R&D capabilityThe supplier explicitly offers ODM services and OEM services for popular brands, reports six to ten years of total R&D engineer experience, and lists tether-station products for multiple DJI platforms. It does not have an available SDK, so innovation capability is supported for product customization and development but not for SDK-based integration.

Production capacityThe supplier reports annual productivity of 500 tether power system pieces and describes products covering multiple tether-station capacities and drone platforms. It also reports fewer than five quality-control staff, while the supplied slices do not establish broader production scale, facility capacity, or manufacturing ownership.

Customization capabilityThe supplier explicitly supports customization from designs, customization from samples, full customization, minor customization, and flexible customization, and also offers ODM services. These statements provide direct evidence of substantial design and customization capability.