Shenzhen Jutai Comm Co., Ltd.
                                                                                                           
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14 Years
Since 2012
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24.125GHz Microwave Radar Sensor with 4m×2m Wide Detection and 12-24V Wide Voltage for Automatic Door Systems

Price Negotiable
Price: 4-6 USD according to order quantity
MOQ: 100
Delivery Time: 5-8 working dag
Brand: JUTAI
Product Description
24.125GHz Microwave Radar Sensor with 4m×2m Wide Detection
Our 24.125GHz Microwave Radar redefines reliability for automatic door and commercial access motion sensing. Equipped with 4m × 2m wide detection and 12-24V universal voltage support, this advanced sensor uses microwave Doppler technology to emit 24.125GHz signals with controlled power density (≤5mW/cm) and radiated power (<20 dBm EIRP), complying with R&TTE and EMC international standards for safe, interference-free operation.
The optimized detection field covers the full access area of most commercial and sliding glass doors, capturing human motion accurately from all entry angles. The 12-24V AC/DC wide voltage range makes this sensor a universal fit for global commercial and industrial applications.
Automatic door microwave radar sensor installation diagram
Product Highlights
  • 24.125GHz mainstream microwave frequency for stable motion detection (≥5cm/s)
  • Wide detection field: 4m(W)×2m(D) at 2.2m mounting height
  • Flexible angle adjustment: 0°~90° vertical / -30°~+30° lateral tilt
  • Wide voltage supply: 12-24V AC/DC with low power consumption (≤2W)
  • IP54 protection & -20℃~+55℃ working temperature for indoor/outdoor semi-enclosed use
  • Easy installation & adjustment with compact size, sensitivity potentiometer, and clear LED status prompt
  • Reliable output: 1.5s signal hold, 42V AC/DC max contact voltage, 1A resistive current
RD24-4S Automatic Door Sensor technical specifications diagram
Technical Specifications
Parameter Specification
Technology Microwave Doppler Radar
Transmitter Frequency 24.125GHz
Transmitter Radiated Power <20 dBm EIRP
Transmitter Power Density ≤5mW/cm
Maximum Mounting Height 3m
Tilt Angles 0°~90° vertical; -30°~+30° lateral
Detection Field (2.2m mounting) 4m(W)×2m(D)
Detection Mode Motion detection
Minimum Detectable Speed 5cm/s (sensor axis)
Supply Voltage 12-24V AC ±10%; 12-24V DC +30% / -10%
Mains Frequency 50-60Hz
Power Consumption ≤2W(VA)
Output Mode Switch tube output
Signal Output Time 1.5s hold
Max Contact Voltage 42V AC/DC
Max Contact Current 1A (resistive)
Max Switching Power 30W(DC) / 60VA(AC)
Working Temperature Range -20℃ ~ +55℃
Degree of Protection IP54
Norm Conformity R&TTE 1999/5/EC; EMC 89/336/EEC
Material ABS
Housing Color Black/Silver
Dimensions (W×H×D) 120mm×80mm×50mm
Net Weight 0.215kg
Cable Length 2.2m
Installation & Adjustment Guide
The sensor's performance is closely related to correct installation and adjustment—simple operation with no professional tools required:
  • Mounting Requirements: Avoid vibration positions, neon lamp proximity and sensor occlusion; do not touch internal electronic parts during installation.
  • Sensitivity Adjustment: Rotate the sensitivity potentiometer gently and slowly; the sensitivity value determines the size of the detection field.
  • Angle Adjustment: Planar antenna lateral angle = detection field position; vertical angle = detection field depth; set microwave module angle to ≥45° for optimal detection.
  • Status Check: LED flashes after power-on (normal standby); LED lights up continuously when a moving target is detected.
Troubleshooting Guide
Fault Phenomenon Probable Causes Corrective Action
Door does not open & LED no light Sensor power off Check wiring connection and power supply validity
Door opens/closes constantly Sensor detects door vibration/movement; interference source in detection range Fix the sensor firmly; increase tilt angle/reduce sensitivity; remove interference sources
Detection distance is too close Low sensitivity; microwave module angle <45°; sensor blocked Adjust sensitivity potentiometer; set module angle to ≥45°; remove occluding objects
Application Scenarios
The RD24-4S is a multi-scenario motion detection sensor with high adaptability, primarily applicable to:
  • Automatic Door Systems: Sliding doors, swing doors, glass induction doors (commercial buildings, shopping malls, office buildings)
  • Security & Monitoring: Perimeter security detection, indoor human motion induction (residential, factory, warehouse)
  • Industrial Automation: Conveyor belt motion detection, equipment start/stop induction (light industry production lines)
  • Intelligent Building: Smart lighting induction, air conditioning induction (public areas such as corridors and elevators)
Microwave motion sensor in operational environment RD24-4S sensor production and quality control process
Core Technologies
Microwave Doppler Radar Sensor, 24.125GHz Radar Sensor, Automatic Door Motion Detector, Wide Field Detection Sensor, IP54 Motion Sensor

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Jutai Comm Co., Ltd.
Location 5F, Building A1, Xuxingda Industrial Zone, Shiyan Street, Baoan District, Shenzhen, China
Contact Person David

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