---
product_id: 588120301
title: "EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime..."
brand: "ec buying"
price: "448805₫"
currency: VND
in_stock: null
reviews_count: 8
category: "Ec Buying"
url: https://www.desertcart.vn/products/588120301-ec-buying-ld2420-radar-sensor-module-24ghz-ism-human-body
store_origin: VN
region: Vietnam
---

# 3.3V low power operation 8m max sensing distance 24GHz radar frequency EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime...

**Brand:** ec buying
**Price:** 448805₫
**Availability:** ❌ Out of Stock

## Summary

> 📡 Detect the unseen. Own the smart space.

## Quick Answers

- **What is this?** EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime... by ec buying
- **How much does it cost?** 448805₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/588120301-ec-buying-ld2420-radar-sensor-module-24ghz-ism-human-body)

## Best For

- ec buying enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Integration:** Supports GPIO and UART interfaces for plug-and-play compatibility with ESPHome, Home Assistant, and other platforms.
- • **Real-Time Responsiveness:** Instant refresh of detection results ensures your smart system reacts without delay.
- • **Compact & Energy Efficient:** Lightweight surface mount design powered at just 3.3V and 50mA for sleek, low-power installations.
- • **Customizable Sensing Range:** Easily adjust detection distance and sensitivity to fit any smart home or AIoT environment.
- • **Precision Motion Detection:** Advanced 24GHz millimeter wave radar senses micro and macro human movements with ±0.5m accuracy.

## Overview

The LD2420 Radar Sensor Module is a cutting-edge 24GHz millimeter wave radar designed for precise indoor human motion detection up to 8 meters. Featuring advanced signal processing and customizable settings, it integrates effortlessly with popular smart home platforms via GPIO and UART. Its low power consumption and compact design make it ideal for modern AIoT applications seeking real-time, reliable presence sensing.

## Description

Buy EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millimeter Wave Radar Sensor Module AIOT Smart Home 8M 3.3V 50A: Radar Detectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works with esphome and home assistant - I've used two of these and they work well with home assistant and esphome. The recognized movement at a fair distance, say 30ft. Lots of different options to play with in the settings.
Review: Don't trust the description for this LD2420 - First - if you want to know how to hook this up and get started quickly, search for ld2420 on esphome's site. Not only will you get access to the code to see an example, but there's a very nice module page that describes all the CORRECT hookups, in English without any false/misleading information. The problem with this unit is, simply put, that two different versions exist with the same look and feel and depending on what version, the hookup is very different. The original/old version (= v1.5.3) version. This means OT1 is the TX and not OT2 and the baud rate on this unit is only 115200 - not the weird 256000 for the old version. I've found no way to tell which version the unit is by looking at it. Only once you ARE connected can you query the firmware version, and then know how to hook up the wires, and well - you get it. It's a mess. Once hooked up to an old ESP32 using TX2/RX2 for basic uart functionality I finally got the results I wanted, the unit was working. Until then I spent days talking with the vendor - who was VERY responsive but only offered a full Chinese language only documentation. Nothing for the country they sold this in. For this reason I would suggest finding another vendor - but at least you know and with the external documentation like that on esphome.io you'll make this work. This site covers the parameters fine. To understand how this unit works under the covers, you seem to have to learn chinglish as you auto-translate documents in Chinese.

## Features

- HLK-LD2420 is a high-performance 24 GHz one transmitter, one receiver radar module
- Its human body sensing algorithm adopts millimeter wave radar distance measurement technology and advanced proprietary signal processing technology of the S3 series chip, achieving precise perception of motion, micro motion, and standing human bodies.
- HLK-LD2420 is mainly used to perceive whether there is movement or micro movement of the human body in the indoor scene perception area, and to refresh the detection results in real-time.
- It has a maximum sensing distance of 8m for the moving human body, and can easily configure the sensing distance range, sensing sensitivity in different intervals, and refresh time
- Supports GPIO and UART interfaces, plug and play, and flexibly applies to different intelligent scenarios and terminal products.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLCTT2YV |
| Best Sellers Rank | #388 in Radar Detectors |
| Brand | EC Buying |
| Current Rating | 50 Milliamps |
| Date First Available | October 19, 2023 |
| Item Weight | 0.176 ounces |
| Item model number | LD2420 |
| Manufacturer | EC Buying |
| Material | Silicon |
| Maximum Supply Voltage | 3.6 Volts (DC) |
| Measurement Accuracy | ±0.5 meters |
| Mounting Type | Surface Mount |
| Output Type | Digital |
| Package Dimensions | 6.89 x 4.72 x 0.67 inches |
| Sensing Distance | 8 Meters |
| Specific Uses For Product | Indoor human motion detection |
| Style | Modern |
| Upper Temperature Rating | 97 Degrees Fahrenheit |

## Product Details

- **Brand:** EC Buying
- **Current Rating:** 50 Milliamps
- **Item Weight:** 0.01 Kilograms
- **Material:** Silicon
- **Style:** Modern

## Images

![EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime... - Image 1](https://m.media-amazon.com/images/I/51w-sMG1jJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works with esphome and home assistant
*by S***S on January 18, 2025*

I've used two of these and they work well with home assistant and esphome. The recognized movement at a fair distance, say 30ft. Lots of different options to play with in the settings.

### ⭐⭐⭐⭐ Don't trust the description for this LD2420
*by P***N on December 9, 2023*

First - if you want to know how to hook this up and get started quickly, search for ld2420 on esphome's site. Not only will you get access to the code to see an example, but there's a very nice module page that describes all the CORRECT hookups, in English without any false/misleading information. The problem with this unit is, simply put, that two different versions exist with the same look and feel and depending on what version, the hookup is very different. The original/old version (< v1.5.3) is most likely what you'll find when googling and it will absolutely NOT work - wrong baud rate and wrong TX pins. The unit I got was the newer (>= v1.5.3) version. This means OT1 is the TX and not OT2 and the baud rate on this unit is only 115200 - not the weird 256000 for the old version. I've found no way to tell which version the unit is by looking at it. Only once you ARE connected can you query the firmware version, and then know how to hook up the wires, and well - you get it. It's a mess. Once hooked up to an old ESP32 using TX2/RX2 for basic uart functionality I finally got the results I wanted, the unit was working. Until then I spent days talking with the vendor - who was VERY responsive but only offered a full Chinese language only documentation. Nothing for the country they sold this in. For this reason I would suggest finding another vendor - but at least you know and with the external documentation like that on esphome.io you'll make this work. This site covers the parameters fine. To understand how this unit works under the covers, you seem to have to learn chinglish as you auto-translate documents in Chinese.

### ⭐⭐⭐ Great component but hard to find english calibration software
*by N***Y on November 26, 2025*

Worked perfect in my project, but it was hard to find an english version of the software for it.

## Frequently Bought Together

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-19*