JHEMCU JHE20B 5V Self-Powered Buzzer Tracker with LED

The JHEMCU JHE20B is a 5V lost-model buzzer with its own internal battery and a white LED. It connects to the buzzer pads of a Betaflight or Cleanflight flight controller and works as the normal beeper in flight, then keeps alarming on its own after a crash knocks out or ejects the main pack. At 2.7 g it adds next to nothing to freestyle, racing or long-range quads.

Key features

• Approx. 100 dB alarm, loud enough to find a quad in tall grass
• Internal battery charges from the flight controller; a red LED shows charging and goes out when full
• Starts alarming automatically about 30 seconds after main power is lost, with the white LED lit for night searches
• Doubles as a standard active buzzer synchronised with the flight controller
• Hold the release button for more than 2 seconds to silence it

Specifications

• Operating voltage: 5V
• Sound level: approx. 100 dB
• LEDs: White (alarm), red (charging)
• Activation: approx. 30 s after power loss
• Dimensions: 22 x 12 x 9.5 mm
• Weight: 2.7 g

Because it also triggers after a normal battery unplug, press the release button when you disconnect at the end of a flight. Mount it where frame plates and the battery do not muffle the sounder.