---
product_id: 122857846
title: "NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size)"
brand: "nidici"
price: "₨55"
currency: LKR
in_stock: false
reviews_count: 8
url: https://www.desertcart.lk/products/122857846-nidici-jhe42b-s-rc-signal-loss-buzzer-tracker-led-light
store_origin: LK
region: Sri Lanka
---

# Compact size 100dB sound Built-in battery NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size)

**Brand:** nidici
**Price:** ₨55
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Never Lose Your Drone Again!

## Quick Answers

- **What is this?** NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size) by nidici
- **How much does it cost?** ₨55 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/122857846-nidici-jhe42b-s-rc-signal-loss-buzzer-tracker-led-light)

## Best For

- nidici enthusiasts

## Why This Product

- Trusted nidici brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🔊 Loud & Clear Alerts:** Experience a powerful 100dB beep that ensures you never lose track of your drone.
- • **📏 Ultra-Compact Design:** Measuring just 18*17*15MM, this tracker fits seamlessly into your drone setup.
- • **🔋 Hassle-Free Operation:** Built-in battery keeps you connected, even when the main power is off.
- • **🔗 Universal Compatibility:** Easily integrates with all BF and CF flight controllers for a hassle-free experience.
- • **💡 Visual & Auditory Signals:** LED light and sound work in tandem to guide you back to your drone effortlessly.

## Overview

The NIDICI JHE42B_S RC Signal Loss Buzzer Tracker is a compact and lightweight device designed for drone enthusiasts. It features a powerful 100dB alarm that activates after a power failure, ensuring your drone is never lost. With built-in battery support and compatibility with all BF and CF flight controllers, this buzzer tracker is the ultimate solution for reliable drone recovery.

## Description

JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight ControllerSpecifications: Size: 18*17*15MMWeight: 4.3gPackage included:1 x JHE42B_S Finder1 x 3P*1.0MM cableQ:How to turn off the buzzer?A:Press and hold the release button for more than 2 seconds, the JHE42B Finder turns off the soundQ:What is the special feature for this item?When the flight control wiring is correct, the multi-rotor aircraft is powered on, and the flight control power supply will automatically charge the JHE42B_S Finder (the red LED will light to indicate that charging is in progress, Red LED off means charging is saturated; red light flashing means flight controller is powered off, wait 30 seconds waiting time)

## Features

- The fpv buzzer with built in battery has two modes of operation. Mode 1: It is compatible with the functions of the traditional active buzzer and synchronized with the flight control
- Mode 2: When the flight control is normally connected, if the main battery in the flight is powered off, it can still automatically emit 100 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
- The JHE42B_S Finder is compatible with all BF and CF flight controls. Just connect to the buzzer interface of the flight controller and it will work
- Smaller size,only 18*17*15MM; Ultra lightweight: 4.3g

## Images

![NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size) - Image 1](https://m.media-amazon.com/images/I/51gBtEBsydL.jpg)
![NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size) - Image 2](https://m.media-amazon.com/images/I/41DKSq19ViL.jpg)
![NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size) - Image 3](https://m.media-amazon.com/images/I/51YqpK7gdnL.jpg)
![NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size) - Image 4](https://m.media-amazon.com/images/I/511omp1rBKL.jpg)
![NIDICI JHE42B_S RC Signal Loss Buzzer Tracker LED Light Finder 100dB Beep Buzzer Alarm for BF & CF Flight Controller RC Drone (Smaller Size) - Image 5](https://m.media-amazon.com/images/I/61MlBTjW+VL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    works well
  

*by R***S on Reviewed in the United States on May 14, 2019*

Bought this since I couldn't afford a hellbuzzer. Works well for locating quads. My main qualm is mounting. Since you have to press a button to disarm it it tends to get pushed lose when using glue or tape to mount it. The size is great, I was able to fit it in 22mm  slammed frame without trouble. If you're going to use this make sure you waterproof it. I spilled some alcohol on mine and it shorted out buzzing and flashing once it had dried it was fine but it doesn't hurt to take precautions.

### ⭐ 







  
  
    Sorry, but I have to give it 1 stars
  

*by S***S on Reviewed in the United States on August 30, 2019*

I honestly dislike negative reviews from people and tend to skip most of them myself. But I was really disappointed when I installed this one. I have other JHE42B model and it works great an so loud that it's almost annoying, but that one saved my quads over a dozen times where I fly. I purchased this one because it was much smaller and lighter. However, this unit was/is sooo quiet on my quad that I could barely hear it up close. The esc and motor beeps are actually louder than this buzzer when I failsafe.I figured that since it was only 10db lower than the JHE42B, that it wouldn't make a difference, but I was wrong. I don't recommend this at all as your esc’s on a 3" quad will be louder. Stick with the JHE42B and you will be VERY happy. I don't have favorites, but I'm just letting you know that I would not trust this one at all where I fly

### ⭐⭐⭐⭐⭐ 







  
  
    Nice and loud.
  

*by M***. on Reviewed in the United States on January 29, 2020*

Works great. It does need to have the button depressed every time you disconnect the battery, so needs to be installed in an area where you can access the button either with your finger or something like a poker.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-27*