Detect objects or interruptions with precision using the HD-DS200CM Through-Beam Infrared Sensor. This reliable sensor set includes an infrared emitter and a receiver, designed to create an invisible beam that detects when an object passes through it. It's perfect for a wide range of automation, security, and DIY electronics projects.

Key Features

• Long Sensing Distance: Provides stable detection up to 3 meters (approx. 9.8 ft) in an indoor environment.
• Reliable NPN Output: Features a 3-wire NPN output (Normally Open). The signal goes LOW (active) when the beam is broken, making it easy to integrate with microcontrollers like Arduino, Raspberry Pi, or PLCs.
• High Current Output: Capable of 70mA output, strong enough to directly drive small relays, buzzers, or indicator lights without needing an extra driver circuit.
• Fast Response: Reacts in just 2ms, making it ideal for high-speed applications like object counting on a conveyor belt.
• Focused Beam: A narrow emission angle (<5°) and receiving angle (<10°) ensures precise detection and reduces false triggers from side objects.
• Compact & Easy to Mount: The miniature housing (20x10x8mm) includes a mounting hole, allowing it to fit into tight spaces.

How It Works

Simply point the clear emitter at the dark receiver and provide power. The emitter sends a focused, invisible IR beam. As long as the receiver "sees" the beam, the output signal remains HIGH (open). When an object passes between them and breaks the beam, the receiver's output instantly switches LOW (connects to GND).

Common Applications

• Assembly Line & Conveyor Belt Object Counting
• Automatic Doors, Gates, and Pet Flaps
• Robotics Obstacle Avoidance
• Security & Intrusion Alarms
• Entry/Exit Chimes or Visitor Counters

Specifications

• Model: HD-DS200CM
• Sensing Method: Infrared Beam Interruption (Through-Beam)
• Sensing Distance: Max 3 meters (300cm)
• Operating Voltage: DC 4.5V - 5.5V
• Current Draw: Emitter (~20mA), Receiver (~10mA)
• Output Type: NPN, Normally Open (Outputs LOW when beam is broken)
• Output Current: 70mA (Max)
• Response Time: 2ms
• Dimensions (LxWxH): 20mm x 10mm x 8mm
• Cable Length: Approx. 30cm
• Environment: Indoor use (not waterproof)
• Operating Temp: -10°C to 60°C

What's Included

• 1 x Infrared Emitter (Transmitter, 2-wire)
• 1 x Infrared Receiver (3-wire)

Wiring Guide

• Emitter (Clear Lens, 2 Wires):
  • Red: +5V DC
  • Black: GND
• Receiver (Dark Lens, 3 Wires):
  • Red: +5V DC
  • Black: GND
  • Yellow: Output Signal (NPN)