Product Details ＋

The CZI TK3 Tethering System is the new generation of ground power systems, further optimized for size and weight.

It converts 220V AC power into 400V DC high-voltage power, which is transmitted to the drone through a high-performance nickel alloy cable. This enables the drone to realize 24-hour uninterrupted flights.

Used in conjunction with UAV matrix lights, high-power gimbal searchlights, cameras, and other mission payloads, it can meet the needs of long-time and large-area emergency lighting and monitoring in complex emergency scenarios.

CZI Q&A

Question 1: When using TK3, the remote control prompts "left battery connection error, return to home or land promptly" or "right battery connection error, return to home or land promptly", "Battery output power is insufficient, return to home or land promptly", ''Power and flight attitude restricted. Return to home promptly. Check battery warning for issue reason” What should I do?

Answer: The above are all normal conditions, and you can continue to fly. This warning appears whenever the aircraft is powered by TK3. This warning occurs because the drone is operating in TK3 mode, which prioritizes TK3 power supply. When the TK3 power supply can meet the drone's power consumption, the original aircraft battery does not output power. When the battery does not output power, it triggers the aircraft warning. This situation does not affect flight safety.

Question 2: About ToF Sensor Error

Answer: This situation may be caused by contamination of the aircraft's sensor lens (refer to DJI's suggestion: "ToF camera is dirty") or by weather conditions. Our equipment does not affect the sensors. Our local Public Security Bureau has tested the TK3 and issued a report.

TK3 & TK300 Comparison
Model	TK3	TK300
Input Volt	☆110v~220v AC	220v AC
Weight/kg	☆Weight≤7.5kg	Weight≤13kg
Dimension/mm	*☆356310229mm*	560390260mm
Output Volt	400V DC
Output Power	3kw
Transportation	☆Specialized Outdoor Backpack	Carrying/Handling
Cable Length	80m(Optional 30m extension cable)	80m(Optional 30m extension cable)
Applicable Models	☆DJI M300 / M350 / M30 / M30T	DJI M300 / M350
Upgrade Method	Wired/wireless OTA	Bluetooth
Drone-side communication pairing	☆Yes	No
Overcurrent protection	Automatic protection of on-board power supply when output current ＞65A
Deployment Status	- Foldable Quick Release Waterproof Bracket - LED near-field light (white constant, red and blue burst)
Power supply	- Energy storage device - 220V Utility - Alternators
Info Display	☆5-inch high-brightness display (power output, light switch, take-up strength,high-brightness, and other info) Fault specifics when occurred Power failure at the ground side, the buzzer will sound an alarm for 2 minutes.	3.5-inch high-brightness display (power output, light switch, take-up strength, and other info)