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AJMRTC LD2420 24GHz Millimeter Wave Radar Sensor Module, Human Presence Micro Motion Detector, PIR IR Sensor Replacement for Smart Light, Smart Fan, Home Automation Switch, DIY Smart Home Project
- - 24GHz millimeter wave radar detects human presence and tiny micro-movements like breathing, outperforms traditional PIR IR sensors
- - Adjustable sensing range, sensitivity and hold time via UART command for customized smart home logic
- - Supports GPIO level output and serial communication, easy integration with MCU, ESP32 and smart switches
- - Not affected by darkness, dust or ambient temperature, stable detection behind non-metal panels
- - Widely used for smart lighting, exhaust fans, automatic switches and indoor occupancy automation
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Overview
Specs
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AJMRTC LD2420 24GHz millimeter-wave radar module is an upgraded replacement for infrared PIR motion sensors. It captures subtle human micro-movements to recognize stationary people, which regular IR sensors cannot do. Working at 24GHz ISM band, it can penetrate plastic, wood and glass. With UART and GPIO dual output interfaces, it is flexible for DIY smart light, fan control and occupancy sensing automation projects.
Specifications
- Brand: AJMRTC
- Model: LD2420
- Frequency: 24GHz
- Detection Type: Human presence & micro-motion detection
- Power Input: 3.3V DC
- Interface: UART + GPIO
- Feature: IR / PIR sensor replacement
- Quantity: 1 Piece
- Application: Smart Light, Smart Fan, Automatic Switch, Home Automation, DIY IoT
- Size: 20mm × 20mm
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by ConnectFlow USA Return Policy
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