Hi-Link HLK-LD1020-P 10GHz Radar Motion Sensor Module, Human Presence Detection, Range: 12m

Name: Hi-Link HLK-LD1020-P 10GHz Radar Motion Sensor Module, Human Presence Detection, Range: 12m
Brand: Hi-Link
SKU: SENS-2415
Price: 79.00 INR
Availability: OutOfStock

₹79.00 (Inclusive of all taxes)

Out of Stock

The Hi-Link HLK-LD1020-P is a compact 10.525GHz X-band radar motion sensor module designed for low-power, human presence detection applications. It integrates signal processing and a built-in algorithm, providing a direct digital output compatible with 3.3V and 5V microcontroller systems like Arduino, ESP32, and Raspberry Pi for smart lighting and security automation.

Features

10.525GHz X-band Doppler radar with 12-meter radial detection range.
Ultra-low power consumption: 110µA in pulse mode, 15mA max operating current.
Integrated signal processing chip outputs direct detection results, no external MCU required.
Wide 110° ±10° beam angle suitable for ceiling or wall mounting.
Operates from 3.3V to 12V DC, making it compatible with a wide range of power supplies.

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Description

The HLK-LD1020-P module utilizes a fixed-frequency Doppler radar principle at 10.525GHz to detect motion and presence. Its 1T1R (one transmit, one receive) antenna design, combined with integrated intermediate frequency demodulation and digital processing, provides high stability and excellent suppression of environmental clutter and harmonics. This makes it immune to common interferences from temperature, humidity, or airborne particulates like油烟.

Designed for embedded and concealed installation, the module features configurable parameters such as sensing range, delay time (adjustable up to 3600 seconds), and an optional photosensitive function. Its microampere-level power consumption in pulse mode makes it ideal for battery-powered or energy-harvesting applications in smart buildings and IoT devices.

Key Features

Advanced Radar Chip: Based on a dedicated X-band radar IC with center frequency of 10.525GHz for reliable motion sensing.
Direct Digital Output: On-chip algorithm processes radar returns and provides a clean 3.2-3.4V output signal, simplifying system integration.
Environmental Robustness: Performance is unaffected by temperature (-20°C to +70°C), humidity (10-95% RH),油煙, or water mist.
Compact & Durable Build: Extremely small 15x15x2 mm footprint with a robust PCB construction for long-term reliability.
Flexible Configuration: Adjustable detection sensitivity, delay time, and optional ambient light sensing enable tailored application setups.
High-Value Design: Optimized performance-to-cost ratio for mass-market smart home and commercial automation products.

Applications

Smart Lighting Control: Automatic activation of LED bulbs, downlights, ceiling panels, and street lamps in homes, offices, hotels, and campuses based on human presence.
Security & Access Systems: Integration into smart doorbells, electronic peepholes, smart locks, and low-power surveillance cameras for trigger-based recording or alerts.
Energy Management: Presence detection in rooms, corridors, or storage areas to control HVAC systems, appliances, and displays, reducing standby power consumption.
Commercial Automation: Occupancy sensing for restroom fixtures, vending machines, and interactive kiosks in public spaces.

Technical Specifications

Manufacturer Part Number	HLK-LD1020-P
Operating Voltage	3.3V – 12V DC
Operating Current (Pulse/Max)	0.1mA (110µA pulse) / up to 16mA
Radar Frequency	10.40 – 10.65 GHz (Typical 10.525GHz)
Detection Range (Radial/Wall Mount)	Up to 12 m
Detection Range (Ceiling Mount Radius)	2m – 4m (typical 8m at 3M height)
Output Signal Voltage	3.2 – 3.4V (High on detection)
Beam Width (3dB)	110° ±10°
Power Stabilization Time	15s (typical)
Default Delay Time	5s (adjustable up to 3600s)
Block Time	2s
Operating Temperature	-20°C to +70°C
Operating Humidity	10% – 95% RH (non-condensing)
Module Dimensions	15 mm x 15 mm x 2 mm
Module Weight	2 g

Frequently Asked Questions

What is the output signal of the HLK-LD1020-P module?

The module provides a direct digital output signal. When motion is detected, the output pin goes high to a voltage between 3.2V and 3.4V. When no motion is present, the output remains low. This TTL-compatible signal can be directly read by a microcontroller's digital input pin without additional signal conditioning.

How do I power and interface this radar module with an Arduino?

Connect the module's VCC pin to a 3.3V or 5V pin on your Arduino (the module accepts 3.3V to 12V DC). Connect GND to Arduino GND. Connect the module's OUT pin to any digital input pin on the Arduino. You can then read the pin's state (HIGH/LOW) in your sketch to trigger actions based on motion detection. Ensure proper power supply decoupling for stable operation.

Can the detection sensitivity and delay time be adjusted?

Yes, the module's sensing range and delay time are configurable. The delay time (the period the output remains high after motion stops) can be adjusted from the default 5 seconds up to a maximum of 3600 seconds (1 hour). The detection sensitivity, which influences the effective range, is also adjustable, allowing you to tailor the module's response to the specific installation environment and application needs.

Is this sensor suitable for outdoor use or behind walls?

This sensor is designed for indoor or protected outdoor use. The 10.525GHz radar signal does not penetrate solid walls, making it ideal for room-specific detection without false triggers from adjacent spaces. Its performance is unaffected by temperature, humidity, or airborne particles, but it should be housed in a weatherproof enclosure if used outdoors to protect the PCB from direct moisture.