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{"title":"Sliding Glass Door Sensor | RD24-4S | High Precision | 1.5S Signal Hold","imgUrl":"https:\/\/img.chinax.com\/nimg\/e8\/0e\/e39e2d1462df994be07124e15e49-200x200-1\/sliding_glass_door_sensor_7c_rd24_4s_7c_high_precision_7c_1_5s_signal_hold.jpg","attrs":{"Brand Name":"JUTAI","Model Number":"RD24-4S","Certification":"CE","Place of Origin":"Shenzhen China"}}
{"title":"Doppler Detector 24.125GHz | Planar Antenna | Temperature Resistant | Sensitivit","imgUrl":"https:\/\/img.chinax.com\/nimg\/f7\/c5\/05c0a53bfb3784397bb79150937f-200x200-1\/doppler_detector_24_125ghz_7c_planar_antenna_7c_temperature_resistant_7c_sensitivity.jpg","attrs":{"Brand Name":"JUTAI","Model Number":"RD24-4S","Certification":"CE","Place of Origin":"Shenzhen China"}}
{"title":"Commercial Door Sensor | 24.125GHz Microwave | Compact Size | IP54 Waterproof","imgUrl":"https:\/\/img.chinax.com\/nimg\/58\/05\/63f5672c1b89884208feb99466c0-200x200-1\/commercial_door_sensor_7c_24_125ghz_microwave_7c_compact_size_7c_ip54_waterproof.jpg","attrs":{"Brand Name":"JUTAI","Model Number":"RD24-4S","Certification":"CE","Place of Origin":"Shenzhen China"}}
{"title":"Glass Door Sensor RD24-4S | Low Power \u22642W | Adjustable Tilt Angle Durable and","imgUrl":"https:\/\/img.chinax.com\/nimg\/cf\/ee\/fb2f3b3735e83b2fab5d514e5f07-200x200-1\/glass_door_sensor_rd24_4s_7c_low_power_e2_89_a42w_7c_adjustable_tilt_angle_durable_and_sensitivity.jpg","attrs":{"Brand Name":"JUTAI","Model Number":"RD24-4S","Certification":"CE","Place of Origin":"Shenzhen China"}}
This high-performance Doppler Detector is engineered for professional motion sensing applications, highlighted by fully adjustable tilt angles and ultra-high precision motion detection that delivers unrivaled accuracy for automatic door systems, commercial access control and industrial automation setups. Built on advanced microwave Doppler technology operating at 24.125GHz, this detector redefines motion sensing precision by reliably identifying targets moving at a minimum speed of 5cm/s along the sensor axis, eliminating false triggers from minor vibrations, static objects or environmental disturbances—ensuring only intentional human or object motion initiates a response, critical for high-traffic commercial and industrial spaces where accuracy is non-negotiable. Its flexible tilt angle design offers 0°~90° vertical and -30°~+30° lateral adjustability, allowing full customization of the detection field’s position, depth and coverage range; whether mounted at the standard 2.2m height or the maximum 3m installation height, the adjustable angles let you fine-tune the sensor to perfectly match your specific setup, avoiding over-sensing of adjacent areas and ensuring the detection field aligns precisely with the target motion zone for glass doors, sliding doors, commercial entryways and more.
Designed for seamless integration and long-term reliability, this Doppler Detector features a rugged ABS construction with an IP54 dustproof and waterproof rating, operating stably in extreme temperatures from -20℃ to +55℃, making it suitable for both indoor semi-enclosed spaces and outdoor covered access points. The precision motion sensing core is paired with a high-gain planar antenna that delivers a focused, blind-spot-free detection field, and a gentle-adjust sensitivity potentiometer complements the tilt angle controls for further refinement of sensing range, adapting to narrow entryways or wide commercial door bays with equal ease. With low power consumption of ≤2W and broad 12-24V AC/DC wide voltage compatibility, it fits effortlessly into existing power setups without additional adapters, while the built-in LED status indicator provides intuitive real-time feedback—flashing on power-on for standby and solid lighting when motion is detected—simplifying installation, calibration and quick troubleshooting. Compliant with R&TTE 1999/5/EC and EMC 89/336/EEC international standards, this detector ensures interference-free operation even near neon lamps and electronic equipment, merging adjustable positioning, pin-point precision and durable performance into a single, versatile motion sensing solution for all professional access control and automation needs.
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
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
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 (adjust to 1/2 or higher for short detection distance).
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 (detection trigger).
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 in the detection field
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)
Core Technologies
Microwave Doppler Radar Sensor24.125GHz Radar SensorAutomatic Door Motion DetectorWide Field Detection SensorIP54 Motion Sensor
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller
Year Established:
2012
Employee Number:
30~50
Ecer Certification：
Verified Supplier
JUTAI is dedicated to the research and development as well as system integration of security products, achieving an intelligent one unified platform that integrates access control, parking management (parking charging system and parking guidance system), traffic lights system, and o...
JUTAI is dedicated to the research and development as well as system integration of security products, achieving an intelligent one unified platform that integrates access control, parking management (parking charging system and parking guidance system), traffic lights system, and o...
