SKU: SENS-2471
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Hi-Link HLK-LD105 10GHz X-Band Microwave Motion Sensor - 3-5m Range, 110° Angle

₹185.00 (Inclusive of all taxes)
Out of Stock

The Hi-Link HLK-LD105 is a 10.525GHz X-band microwave Doppler radar motion sensor module, offering a 3-5m detection radius with a 110° angle. It features integrated signal processing, adjustable delay/sensitivity, and operates from 3.3V to 12V DC, making it suitable for smart lighting, security systems, and appliance control.

Features

  • 10.525GHz X-band Doppler radar chip with fixed-frequency, directional 1T1R antenna.
  • 3-5 meter sensing radius with a wide 110° detection angle for area coverage.
  • Integrated intermediate frequency demodulation, signal amplification, and digital processing.
  • Configurable parameters: adjustable delay time, sensing range, and ambient light sensitivity.
  • Wide 3.3V to 12V DC operating voltage range with low 25-30mA current consumption.

Out of stock

Description

The HLK-LD105 microwave motion sensor operates on the Doppler radar principle, detecting movement by analyzing frequency shifts in the reflected 10.525GHz signal. Its integrated design includes intermediate frequency demodulation and digital signal processing to filter out clutter and harmonics, ensuring high stability and consistency in detection performance.

Engineered for embedded and concealed installations, the module is unaffected by environmental factors like temperature, humidity, smoke, or water mist. It features a configurable serial communication port for parameter adjustment, allowing fine-tuning of motion delay, detection sensitivity, and light threshold settings to suit specific application requirements.

Key Features

  • X-Band Radar Core: 10.525GHz fixed-frequency operation with directional 1-transmit, 1-receive (1T1R) antenna for precise motion detection.
  • Advanced Signal Conditioning: Onboard intermediate frequency (IF) demodulation and digital processing suppress clutter and harmonic interference.
  • Fully Configurable: Adjustable motion delay, detection range, and ambient light sensitivity via serial communication interface.
  • Robust Environmental Immunity: Performance is stable across -20°C to +70°C and is not affected by non-metallic obstructions like walls, smoke, or vapor.
  • Compact & Low-Power Design: Small form factor with a wide 3.3V-12V input range and typical 25-30mA current draw for easy integration.
  • High Consistency: Manufactured for reliable, repeatable performance in volume production applications.

Applications

  • Smart Lighting Control: Automatic activation of indoor/outdoor LED lights based on human presence, with configurable hold-time and daylight inhibition.
  • Security & Intrusion Detection: Concealed area monitoring for alarm systems, detecting motion in spaces where PIR sensors may be unreliable.
  • Energy Management Systems: Occupancy sensing for HVAC and appliance control in residential, commercial, or industrial buildings to reduce power consumption.
  • Automatic Doors & Gates: Triggering mechanism for sliding doors, garage doors, or elevator call buttons upon approach.
  • Appliance Automation: Enabling touchless control for bathroom fixtures, hand dryers, or retail displays.

Technical Specifications

Manufacturer / BrandHi-Link
Model NumberHLK-LD105
Operating Frequency10.525 GHz (X-band)
Detection PrincipleDoppler Radar
Sensing Range3 - 5 meters (radius)
Detection Angle110°
Antenna Configuration1T1R (Directional)
Operating Voltage3.3V - 12V DC
Operating Current25 - 30 mA (typical)
Operating Temperature-20°C to +70°C
Key FeaturesAdjustable Delay, Adjustable Range, Light Sensitivity, Serial Interface
Primary ApplicationsSmart Lighting, Security Systems, Home Appliance Control

Frequently Asked Questions

What is the operating voltage range for the HLK-LD105 sensor?

The HLK-LD105 operates from a wide DC voltage range of 3.3V to 12V, with a typical current draw of 25-30mA. This makes it compatible with common 5V microcontroller systems (Arduino, ESP32) as well as 12V industrial or automotive power supplies without requiring a voltage regulator.

How do I adjust the sensitivity and delay time of this radar module?

The module features a configurable serial communication interface. You can connect to its TX/RX pins using a USB-to-UART adapter and send specific command packets to adjust parameters like motion detection delay time, sensing range threshold, and ambient light sensitivity level for automatic operation.

Can this microwave sensor detect motion through walls or glass?

No. Operating at 10.525GHz, this X-band radar signal does not penetrate most building materials like walls, doors, or glass. This is a design feature that prevents false triggers from adjacent rooms, ensuring detection is confined to the intended open space within its 3-5m radius and 110° field of view.

What is the difference between this radar sensor and a standard PIR sensor?

Unlike Passive Infrared (PIR) sensors that detect changes in thermal radiation, the HLK-LD105 uses active Doppler radar, emitting and receiving microwave signals. It is less affected by ambient temperature changes, offers better coverage through non-metallic materials like thin plastics, and provides more stable performance in environments with varying heat sources.

Package Includes

  • 1 x Hi-Link HLK-LD105 10GHz Microwave Motion Detection Radar Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 10 × 7 × 2 cm