--- product_id: 677115976 title: "LD2412 Human Presence Sensor Module 24G Wide-Angle Millimeter Wave Radar Detection Module 75° 9M Radar Sensor Module" brand: "ec buying" price: "₹ 2849" currency: INR in_stock: true reviews_count: 3 category: "Ec Buying" url: https://www.desertcart.in/products/677115976-ld2412-human-presence-sensor-module-24g-wide-angle-millimeter-wave store_origin: IN region: India --- # 75° wide-angle detection 24GHz mmWave radar tech 9m max sensing distance LD2412 Human Presence Sensor Module 24G Wide-Angle Millimeter Wave Radar Detection Module 75° 9M Radar Sensor Module **Brand:** ec buying **Price:** ₹ 2849 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your smart space with next-gen human presence sensing! ## Quick Answers - **What is this?** LD2412 Human Presence Sensor Module 24G Wide-Angle Millimeter Wave Radar Detection Module 75° 9M Radar Sensor Module by ec buying - **How much does it cost?** ₹ 2849 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/677115976-ld2412-human-presence-sensor-module-24g-wide-angle-millimeter-wave) ## 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 - • **Plug & Play Integration:** Flexible GPIO and UART interfaces ensure effortless connection with your smart devices. - • **Precision mmWave Detection:** Cutting-edge 24GHz FMCW radar senses human presence with pinpoint accuracy. - • **Long-Range Sensing Up to 9m:** Detect presence from afar, perfect for seamless smart home automation and security. - • **Expansive 75° Field of View:** Capture movement across a broad indoor area for smarter environment awareness. - • **Customizable Sensitivity & Range:** Visual tool lets you tailor detection parameters to your unique space and needs. ## Overview The LD2412 Human Presence Sensor Module leverages advanced 24GHz millimeter wave FMCW radar technology to deliver highly sensitive, real-time detection of human presence within a wide 75° angle and up to 9 meters distance. Its compact, low-power design supports customizable sensitivity and range settings via an intuitive visual configuration tool, while offering versatile GPIO and UART interfaces for seamless integration into smart home and security systems. Ideal for professionals seeking precise indoor motion and presence monitoring with future-ready connectivity. ## Description LD2412 is a wide-angle+long-distance human presence detection millimeter wave radar sensor. Its working principle is to use FMCW frequency modulation continuous wave to detect human targets in a set space. Combined with radar signal processing and precise human sensing algorithm, it achieves high-sensitivity human presence state sensing, can recognize human bodies in motion and stationary states, and can calculate auxiliary information such as target distance. Mainly used in indoor scene perception areas to detect whether there are moving or micro moving human bodies, and to output real-time detection results. Max sensing distance can reach 9 meters with a distance resolution of 0.75m. Provide a visual configuration tool that can easily configure the sensing distance range, sensing sensitivity in different intervals, and unmanned delay time to meet different specific application requirements. Supports GPIO and UART connection, plug and play, flexible application in different intelligent scenarios and terminal products. Frequency: 24G-24.25GHz Modulation method: FMCW Detection distance: Distance resolution 0.75m, 0.75~9m (adjustable) Detection angle: ± 75° Power supply: 3.3V or 5V (power supply capacity>200mA) Current:~90mA (Typ.) Output serial port level: 3.3V Sweep bandwidth: 250MHz Environmental temperature: -40°C~+85°C Appearance size: 11 mm * 28mm Packaging form: default with pins OUT target status output default: detected human presence: output high level; No human presence: output low level; The output level can be configured through instructions TX serial port Tx pin RX serial port Rx pin +5V power supply input 5V; Either 5V or 3.3V power supply can be chosen 3V3 power supply input 3.3V; Either 5V or 3.3V power supply can be chosen GND power supply ground G Power Ground Review: Good Review: This board is an upgrade to the LD2410 human presence detector module. It appears to be relatively new to the scene as it appears (to me anyway) that there aren't any Arduino libraries that'll work correctly with this (yet). As I do not own a computer that runs windows (and given that wine is nearly always a struggle) I'm unable to properly communicate with this module right now. I did however find these things: 1) If you find the the "datasheet" at hlktech for this, you'll note that they provide a link to a google drive directory that contains a respectable amount of detail for this board - and it's pretty readable. 2) It is pin-for-pin "the same" as the 2410 with the exception of an additional VCC pin; you can choose to power it either with 5v or 3.3v. There is also an additional ground pin. 3) The default baud rate has changed. The 2410's default rate was 256000 - meaning that it was occasionally tricky to connect to straight from a computer (I never did this - I made a ESP32 thing for configuring them, which supports that data rate). The new rate is 115200, which is much better supported. 4) After I figured out that the baud rate had changed, I could in fact initialize serial communication to the device ncmreynolds' LD2410 arduino library. Using that library, however, I was unable to do anything other than query the version. Specifically, reading the configuration doesn't work (so I didn't want to mess it up by trying the write-config stuff). I did a search for LD2412 Arduino libraries but did not find anything. 5) With its default configuration, it *does* detect human presence. I'm just unsure what the default parameters are. It does indeed seem more sensitive, but without a working api I can't fully evaluate that yet. The documentation appears to be good enough that I stand a fair chance of being able to update ncmreynolds' library and I may take that on at some point, but not right now. I subtracted 1 star for the "windows only" utility that you can get from the manufacturer for this. We're past that now - they should do something that's cross platform (python, ruby...). Four stars for decent documentation and some "benefit of the doubt" that this is indeed an improved module. I will not know that for certain 'til I can properly talk to it. ## Features - LD2412 Human Presence Sensor Module utilizes mmwave radar technology to accurately detect human body presence in indoor settings - Wide-angle 75° detection range with a maximum sensing distance of 9m and adjustable sensitivity, providing real-time monitoring of movement - Easy-to-use visual configuration tool allows customization of sensing range, sensitivity, and delay time to suit various application needs - Versatile integration with GPIO and UART interfaces for seamless plug-and-play compatibility with a wide range of smart devices and systems - Compact and efficient design with low power consumption, making it ideal for smart home automation and security applications ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DLN4T2X6 | | Best Sellers Rank | #81,858 in Electronics ( See Top 100 in Electronics ) #29 in Radar Detectors | | Brand | EC Buying | | Customer Reviews | 4.8 4.8 out of 5 stars (5) | | Display Type | LCD | | Frequency Bands Supported | 24 GHz | | Manufacturer | EC Buying | | Mfr Part Number | LD2412 | | Model Number | LD2412 | | Power Source | Corded Electric | ## Product Details - **Band frequency supported:** 24 GHz - **Brand:** EC Buying - **Display type:** LCD - **Power source:** Corded Electric ## Images ![LD2412 Human Presence Sensor Module 24G Wide-Angle Millimeter Wave Radar Detection Module 75° 9M Radar Sensor Module - Image 1](https://m.media-amazon.com/images/I/41gBAchSbHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by C***A on 6 October 2025* Good ### ⭐⭐⭐⭐ Review *by O***D on 7 December 2024* This board is an upgrade to the LD2410 human presence detector module. It appears to be relatively new to the scene as it appears (to me anyway) that there aren't any Arduino libraries that'll work correctly with this (yet). As I do not own a computer that runs windows (and given that wine is nearly always a struggle) I'm unable to properly communicate with this module right now. I did however find these things: 1) If you find the the "datasheet" at hlktech for this, you'll note that they provide a link to a google drive directory that contains a respectable amount of detail for this board - and it's pretty readable. 2) It is pin-for-pin "the same" as the 2410 with the exception of an additional VCC pin; you can choose to power it either with 5v or 3.3v. There is also an additional ground pin. 3) The default baud rate has changed. The 2410's default rate was 256000 - meaning that it was occasionally tricky to connect to straight from a computer (I never did this - I made a ESP32 thing for configuring them, which supports that data rate). The new rate is 115200, which is much better supported. 4) After I figured out that the baud rate had changed, I could in fact initialize serial communication to the device ncmreynolds' LD2410 arduino library. Using that library, however, I was unable to do anything other than query the version. Specifically, reading the configuration doesn't work (so I didn't want to mess it up by trying the write-config stuff). I did a search for LD2412 Arduino libraries but did not find anything. 5) With its default configuration, it *does* detect human presence. I'm just unsure what the default parameters are. It does indeed seem more sensitive, but without a working api I can't fully evaluate that yet. The documentation appears to be good enough that I stand a fair chance of being able to update ncmreynolds' library and I may take that on at some point, but not right now. I subtracted 1 star for the "windows only" utility that you can get from the manufacturer for this. We're past that now - they should do something that's cross platform (python, ruby...). Four stars for decent documentation and some "benefit of the doubt" that this is indeed an improved module. I will not know that for certain 'til I can properly talk to it. ### ⭐⭐⭐⭐ Review *by R***R on 3 May 2025* This is relatively a new radar detection chip. There's not a lot of libraries which support the LD2412 yet for use within Arduino. I'm using this mostly as a tinker and learning device while hooked to an ESP32. Eventually, it'll be fun to use this as a motion detector and tracker for controlling lights, or triggering cameras to record without the need for any visible motion sensors. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.in/products/677115976-ld2412-human-presence-sensor-module-24g-wide-angle-millimeter-wave](https://www.desertcart.in/products/677115976-ld2412-human-presence-sensor-module-24g-wide-angle-millimeter-wave) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-05-11*