Description
The Non-Modulator Tube Laser Receiver Module detects laser and other light sources and outputs a digital signal. It uses a 3-pin ISO203 sensor, a light receiver diode with an integrated amplifier and open-collector output. The module operates on 5V DC and provides a low output when a laser beam is detected. It is not limited to modulated signals, making it versatile for various light-based sensing applications. Due to its compact size, it suits both portable devices and industrial equipment.
Key Features
- Output goes low when laser or strong light is detected
- Output high (open-collector) when no light is detected
- Works with non-modulated laser and visible light sources
- Integrated amplifier in sensor for direct digital output
- Open-collector output can sink up to 20mA
- 5V DC operation
- Small 3-pin sensor with standard pinout
- No external modulation or demodulation required
Specification
- Working voltage: 5V DC
- Sensor type: ISO203 / IS0203 laser receiver
- Output type: Open-collector, digital
- Output low: When laser/light detected (sinks current)
- Output high: When no light detected (open circuit)
- Maximum sink current: 20mA
- Peak wavelength sensitivity: ~900nm (works with 650nm red laser as well)
- Detection range: Up to 10 meters (with 5mW red laser)
- Response time: Fast (suitable for counting and timing)
- Operating temperature: -10°C to +70°C
- Pinout: Output, Ground, VCC (refer to sensor marking)
- PCB legend note: Original PCB legend is for temperature sensor — ignore and insert sensor as shown in proper orientation
Application
- Laser counting systems
- Time measurement devices
- Laser guidance systems
- Laser tripwire and laser fence projects
- Portable laser detection equipment
- Industrial automation and safety systems
- Optical beam interruption detection
- Non-modulated light sensing
- Arduino and microcontroller-based projects





