JHE20B 5V Super Loud Buzzer Tracker W/ LED Buzzer Alarm for FPV Racing Drone Flight Controller

5V Self-Powered Buzzer Alarm with LED Tracker for FPV Racing Drone Flight Controllers
The JHE20B 5V Super Loud Buzzer Tracker is a compact self-powered alarm module designed for FPV racing drones and multirotor aircraft. It combines the functionality of a traditional active buzzer with an independent backup alarm system, helping pilots quickly locate crashed or lost drones. With a powerful 100 dB alarm and bright white LED indication, the module improves drone recovery in low-light conditions, dense grass, or long-range flying environments.
This buzzer tracker is compatible with most Betaflight (BF) and Cleanflight (CF) flight controllers and connects directly to the flight controller buzzer interface for simple installation. The integrated backup power feature automatically activates the alarm approximately 30 seconds after the main flight battery is disconnected, ensuring the buzzer continues operating even after a crash or battery ejection. Its ultra-lightweight construction makes it ideal for FPV racing drones, freestyle quads, and long-range UAV builds.
Key Features

Dual Operating Modes: Works as both a standard active buzzer and an automatic self-powered lost model alarm.
100 dB Loud Alarm: High-volume sound output helps locate crashed drones quickly.
Built-In Backup Power: Continues alarming even after the main LiPo battery disconnects.
Bright White LED Indicator: Improves visibility during night flying or recovery in dark areas.
Automatic Activation: Triggers alarm approximately 30 seconds after power loss.
Easy Alarm Reset: Press and hold the release button for over 2 seconds to stop the buzzer.
Flight Controller Compatibility: Supports BF and CF flight controllers through standard buzzer interface connection.
Charging Status Indication: Red LED shows charging and operating status.
Ultra-Lightweight Design: Only 2.7 grams, suitable for lightweight FPV drone builds.
Compact Form Factor: Easy to mount in racing drones and mini quadcopters.

Applications

FPV racing drones
Freestyle quadcopters
Long-range FPV builds
Drone crash recovery systems
Mini UAV and RC aircraft projects

Package List:

1xJHE20B Finder
1x3Px1.0MM line