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S4A020 Automatic Door Mini Infrared Sensor

Active Infrared Technology: Delivers precise infrared scanning for fast and responsive automatic door activation.
Compact Mini Design: Housed in a durable black ABS plastic enclosure designed for clean, space-saving surface mounting.
Adjustable Detection Angle (0° to 25°): Allows fine-tuning of the detection field (far or near) to match specific doorway entry zones.
Selectable Relay Output (NO/NC): Supports both Normally Open and Normally Closed signal outputs for high integration versatility.
Universal Power Input: Operates on AC/DC 12–24V power supplies for effortless connection to standard door controllers.
  • Brand:

    S4A
  • Specifications
  • Wiring Diagram
  • Package

S4A020 Automatic Door Mini Infrared Sensor


The S4A020 is a compact active infrared motion sensor engineered for automatic sliding and swing door activation systems. Encased in a sleek black ABS housing, it features flexible vertical angle adjustment (0°–25°) with a maximum mounting height of 2.6 meters. Delivering selectable NO/NC relay outputs and broad 12–24V AC/DC power compatibility, it provides accurate, reliable entrance detection for commercial and residential installations.


Parameter Specification
Model S4A020
Sensor Type Mini Infrared Sensor
Technology Active Infrared Scanning
Mounting Height Max 2.6m
Adjustable Angle Far or near 0° ~ 25°
Power Source Voltage / Input AC/DC 12~24V
Relay Output NO / NC (Normally Open / Normally Closed)
Scanning Area 100 x 80 mm
Maximum Sensing Distance 1000 mm
Frequency 315 MHz
Wireless Transmission Distance 15m
Standby Current <80 μA
Dynamic Current 13 mA / 80 mA
Outer Covering Material ABS Plastic
Dimensions 63 x 57 x 52 mm / 123 x 50 x 32 mm (L*W*H)
Available Colors Black
Application Scope Hotels, Buildings, Offices, Malls, Hospitals, Warehouses, Corridors

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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