DJI Matrice 4 Series BK4 Red & Blue Warning Dropper Kit

DJI Matrice 4 Series BK4 Red & Blue Warning Dropper Kit

Compact two-in-one public-safety accessory combining red/blue warning lights with a dual-point throwing or drop function for DJI Matrice 4 series aircraft.

The BK4 is designed for operators who need visible warning capability plus lightweight payload release functionality in a single compact module.

Compatibility

Designed for: DJI Matrice 4T and Matrice 4E series aircraft using the supported E-Port interface.

Key Functions

• Red and blue warning light output
• Two throwing / release positions
• Fast installation through the DJI E-Port interface
• Bluetooth-assisted control support
• Compact payload form factor for public-safety operations

Applications

• Public safety and law enforcement operations
• Search and rescue
• Emergency signaling
• Line deployment and lightweight item release
• Night operations and scene awareness

What Is Included

One BK4 warning-light and dual-dropper module as represented by the selected product configuration. Aircraft, controller, mounting accessories not integrated into the device, and disposable payload items are not included unless specifically stated.

Important

Payload use can affect aircraft mass, balance, flight time, and regulatory obligations. Verify secure installation, aircraft firmware compatibility, local operating rules, and payload limits before use.