HLK-LD2412 ±75° Human Presence Detection Distance Sensing Radar Module
📦 Location of the warehouse: München, Germany
🚚 We will ship your order within 24 hours after the order is taken.
- Pre-Ordering: If an item is unavailable, you can pre-order it. We'll dispatch once stock is replenished, usually within 10 working days.
- Express Shipping: Need it faster? Contact us via email or through our live chat support, and we'll arrange expedited delivery for you.
Free Shipping from 30€ in Germany, 50€ in the EU!
- EU Countries Delivery Time: 4~8 working days.
- Other Countries Delivery Time: 2~2.5 weeks.
Free shipping for you
Free Shipping from 30€ in Germany, 50€ in the EU!
Trustpilot rating: 4/5
Thank you for your support - rate us on Trustpilot!
HLK-LD2412 ±75° Human Presence Detection Distance Sensing Radar Module
HLK-LD2412 ±75° Human Presence Detection Radar Module is a highly sensitive 24GHz module for human presence state sensing. It operates on the principle of FMCW frequency modulation continuous wave to detect human targets. With advanced radar signal processing and precise sensing algorithms, it achieves high sensitivity detection of both moving and stationary humans.
HLK-LD2412 ±75° Human Presence Detection Radar Module is primarily used in indoor scenes, it can detect human body movement or micro-movement in the perception area and output real-time results. It has a maximum sensing distance of 9 meters and a distance resolution of 0.75 meters. It also provides a visual configuration tool for customizing sensing distance range, sensitivity in different intervals, and unmanned delay time.
HLK-LD2412 ±75° Human Presence Detection Radar Module supports GPIO and UART outputs, offering plug-and-play convenience. It can be flexibly applied to various intelligent scenarios and terminal products, enhancing the functionality and intelligence of different systems.
Features
-
Plug and play, simple assembly method
-
The farthest sensing distance can reach up to 9 meters, and the nearest and farthest detection distances can be configured
-
Large detection angle, with a coverage range of ± 75 degrees
-
Multi level intelligent parameter tuning to meet the needs of scene changes
-
Visual debugging and configuration tools
-
Compact and simplified, supporting multiple installation methods such as ceiling and wall mounting
-
24GHz ISM frequency band, certified by FCC and CE spectrum regulations
-
The ultimate cost-effective choice
Parameters
- Frequency: 24G-24.25GHz
- Modulation Type: FMCW
- Detection Distance: Distance resolution 0.75m, adjustable from 0.75m to 9m
- Detection Angle: ±75°
- Power Supply: 3.3V or 5V (Power capacity >200mA)
- Current: ~90mA (Typ.)
- Output Serial Port Level: 3.3V
- Frequency Sweep Bandwidth: 250MHz (Compliant with CE/FCC certification standards)
- Operating Temperature: -40°C to +85°C
- Dimensions: 11mm x 28mm
-
Package Type: Default with pins
Pin Definition
| Pin Symbol | Name | Function |
|---|---|---|
| OUT | Target Status Output | Default: Detects the presence of a person: outputs high level. No presence: outputs low level. Output level can be configured by commands. |
| TX | Serial Port Tx | Serial port Tx pin |
| RX | Serial Port Rx | Serial port Rx pin |
| +5V | 5V Power Input | Power input: 5V; 5V and 3.3V power supply can be selected. |
| 3V3 | 3.3V Power Input | Power input: 3.3V; 5V and 3.3V power supply can be selected. |
| GND | Ground | Power ground |
| G | Ground | Power ground |
Includes
- LD2412 Module ×1
- LD2412 Test Kit : LD2412 Modul×1+ 2.54mm*5Pin DuPont Cable×1+Serial
CH340×1
Applications
- Human Sensor Light Control
- Advertising screen
- Intelligent Home Appliances
- Intelligent Security
Download
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.io for a return authorization before sending anything back.
Return Conditions
- Items must be in original, clean, and mint condition with packaging intact.
- Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
- Include the receipt, a brief note with your name, order number, and reason for return.
Shipping & Fees
- Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
- Refunds may be subject to additional shipping fees unless the return is due to our error.
- A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.
Payment Platform Fees
For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.
