Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Frequency	10.525 GHz
Detection Range	0.5m - 15m (Adjustable)
Supply Voltage	3.3V DC
Interface Type	UART / TTL
Beam Angle	120° Horizontal
Power Consumption	< 60mW
Dimensions	24mm x 16mm x 3mm
Operating Temperature	-20°C to +70°C
Supported Models	LD1020, LD020, LD021, LD104
Application Scenario	Smart Home, Presence Detection, Lighting Control

6 reviews

Anonymous

Mar 29, 2026

Rating: 4/5

Solid hardware, good documentation

The build quality feels robust. Documentation provided clear pinout details and protocol examples. Only minor issue was the initial range seemed shorter than expected until I adjusted the mounting height.

Anonymous

Mar 17, 2026

Rating: 4/5

Great value, requires calibration

The module works as advertised. It took a bit of time to tune the sensitivity parameters to avoid false triggers from ceiling fans, but once calibrated, it performs flawlessly. Compact size is a huge plus.

Anonymous

Mar 11, 2026

Rating: 5/5

Perfect for IoT integration

Integrated this with an ESP32 for a custom security sensor. The data output is clean and the low power consumption makes it ideal for battery-assisted applications. Highly recommended for developers.

Anonymous

Mar 10, 2026

Rating: 5/5

Best radar module in this price range

I have tested several brands, and Hi-Link offers the best balance of price and performance. The ability to detect presence through thin non-metallic materials is a game changer for hidden installations.

Anonymous

Mar 02, 2026

Rating: 5/5

Reliable 10G radar performance

Switched from infrared to this microwave radar for a bathroom occupancy sensor. It detects breathing and minor movements even when the user is still, which solved our lights-turning-off-too-soon issue completely.

Anonymous

Mar 02, 2026

Rating: 5/5

Excellent sensitivity for smart home projects

I used the LD1020 module for an automatic lighting system in my hallway. The detection is incredibly accurate and distinguishes between static presence and movement better than standard PIR sensors. Setup via UART was straightforward.

5 FAQ

Q: Can this sensor detect human presence if the person is sitting completely still?

A: Yes, unlike traditional PIR sensors, this 10G microwave radar can detect micro-movements such as breathing, allowing it to identify static presence effectively.

Q: What is the maximum detection distance for the LD104 model specifically?

A: The LD104 model typically supports a maximum detection distance of up to 15 meters in open spaces, though this can vary based on installation environment and target reflectivity.

Q: What is the communication protocol used for configuration?

A: The module uses a standard UART (TTL level) interface for communication and configuration. You can send specific hex commands to adjust sensitivity, range, and delay times.

Q: Is the LD1020 suitable for outdoor use?

A: While the operating temperature range is wide (-20°C to +70°C), the module itself is not waterproof. It must be housed in an IP-rated enclosure if deployed outdoors.

Q: Does this module interfere with Wi-Fi signals?

A: The module operates at 10.525 GHz, which is distinct from the 2.4 GHz and 5 GHz bands used by most Wi-Fi routers, so interference is generally not an issue.

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

3-Wire/4-Wire Flame Sensor Module, Fire Source Detection with IR Receiver, Flame Detection and Alarm

$1.08

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

HX711 Pressure Sensor Module Electronic Scale Bracket Weighing DIY Scale Pan Tray Set 5/10/40kg200

$3.28

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

Thin Film Pressure Sensor Display, USB Rechargeable Flexible Resistive Pressure Digital Display Module, Wide Range Wireless

$20.00

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

5A Range Current Transformer Module Voltage Sensor Single-Phase AC Active Output Current Transmitter

$5.06

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Metal Detector Module Non-Contact Metal Induction Sensor Detection Module Metal Detector

$8.70

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

E18-D80NK Infrared Obstacle Avoidance Sensor Proximity Switch Smart Robot Car 10-80cm

$6.30

Digital 38KHz Infrared Receiver/Transmitter Head Sensor Module for Electronic Building Blocks Robots, Infrared Communication Remote Control

$2.80

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Ningbo Keli SQB Cantilever Beam Weighing Module Sensor 100kg 500kg 1t 2t 3 Ton Small Floor Scale Inductor

$48.00