Recommended Products
Alternatives and More Options
Alternatives and More Options



CZI TK4 is a tethered power system designed to supply compatible aircraft and mission payloads from a ground station. The tether carries high-voltage DC power and power-line communication (PLC), helping reduce battery-change interruptions during fixed-position operations such as public-safety overwatch, emergency scene lighting, long-duration monitoring and communications support. The DJI Matrice 400 aircraft is sold separately.
Choose the 110 m or 200 m tether variant above. The cable length is a system configuration, not a guaranteed flight altitude. Actual operating height and endurance depend on the aircraft, payload, site, weather, power source, tether routing and applicable operating rules.
CZI specifies 800 V ground-to-air transmission and a 50 V airborne output rated at 4 kW. The ground station output is specified at 4.5 kW. Power-line communication supports 100 Mbps bandwidth; HDMI and Ethernet outputs are available at the ground station for command-centre video workflows.
A tethered supply can keep an aircraft powered from the ground while it remains deployed, reducing routine battery swaps. It is suited to planned observation, lighting and monitoring tasks where a stable operating area and tether management are practical. It does not remove aircraft, weather, power-source, setup or regulatory limits.
CZI identifies the DJI Matrice 400 as a supported platform. Confirm the aircraft model, airborne-unit interface, payload combination and mission requirements with SkyFlow before ordering. The aircraft is not included with the TK4 system.
The variants use different tether cable lengths. Select 110 m for the standard cable configuration or 200 m when the longer tether is required. Tether length does not equal permitted flight height; site and operating limits still apply.
Yes. The TK4 uses power-line communication rated at 100 Mbps, and the ground station provides HDMI and Ethernet video outputs, according to CZI.
The DJI Matrice 400 is sold separately. Payloads and accessories are configuration-dependent; contact SkyFlow to confirm exact package contents and compatibility before purchase.
Confirm aircraft and payload compatibility, site power, tether routing and clearance, grounding, operating environment, crew procedures and applicable aviation requirements. A qualified operator should assess the site and follow current manufacturer instructions and local rules.