HLK-LD1125H-24G 24GHz Millimeter Wave Human Presence Radar – High-Sensitivity FMCW Breathing & Motion Sensor

Experience the next generation of occupancy sensing with the HLK-LD1125H-24G Radar Sensor . This high-sensitivity 24GHz millimeter-wave module at robosap.in goes beyond simple motion detection. By detecting and accumulating micro-movements like respiration, it provides a highly accurate “human presence” signal that is not easily missed, even during periods of complete physical stillness.

Superior Penetration & Discreet Installation

The 24G millimeter-wave technology allows the radar signal to pass through various non-metallic materials, including plastic, glass, acrylic, and ceramics. This enables the module to be hidden inside enclosures or behind ceilings without the need for visible openings, maintaining the aesthetic of your smart home or security device.

Key Features

• Micro-Movement Detection: Identifies human presence through breathing and tiny body movements, eliminating “false-offs” when sitting still.

• FMCW Modulation: Uses Frequency Modulated Continuous Wave technology for precise ranging and high sensitivity.

• Wide Detection Range: Detects active movement up to 8m and static human presence up to 4m.

• Broad Coverage: Features an antenna half-power angle of ±22° horizontally and ±24° vertically.

• Seamless Integration: Direct Serial port ASCII output makes it compatible with most microcontrollers at a 3.3V logic level.

Technical Specifications

Typical Application Scenarios

• Smart Home Automation: Energy-saving lighting and HVAC control that stays on while you read or work.

• Security & Surveillance: High-accuracy intrusion detection that cannot be fooled by staying still.

• Industrial Safety: Human presence monitoring around sensitive machinery or automated zones.

• Healthcare: Non-contact respiratory monitoring and fall detection assistance.

Package Includes

• 1 x HLK-LD1125H-24G 24GHz Radar Sensor Module

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