JHE42B Smart Buzzer

  • $9.99
    Unit price per 
  • Save $4.96


JHE42B Smart Buzzer
Buzzer, with built in lipo, for connecting to flight controllers.  Works as active buzzer in normal operations, but will emit 110dB sound after 30 seconds of power failure.  Perfect for situations where batteries disconnect after a crash.  

  • It is compatible with the functions of the traditional active buzzer and synchronized with the flight control
  • When the flight control is normally connected, if the main battery in the flight is powered off, it can still automatically emit 110 dB of drip sound after 30 seconds of power failure, and the LED will emit white light, and the sound is louder than the general buzzer
  • Compatible with all BF and CF flight control
  • Just connect to the buzzer interface of the flight controller and it will work
  • When the flight control wiring is correct, the multi-rotor aircraft is powered on, and the flight control power supply will automatically charge the finder ( the red LED will light to indicate that charging is in progress )

How to turn off the buzzer:

  • Press and hold the release button for more than 2 seconds, then the finder turns off the sound


  • Product weight: 0.0074 kg 
  • Product size (L x W x H): 2.30 x 1.70 x 1.70 cm / 0.91 x 0.67 x 0.67 inches
  • Battery: 3.7V 150mAh LiPo
  • Working time: 5 - 8mins
  • Charging time: about 60mins

1x JHE42B Smart Buzzer
1x Cable

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