Laser Receiver Sensor Module Non-Modulated Tube

The Laser Receiver Sensor Module Non-Modulated Tube is a 5V DC digital sensor that detects continuous (non-modulated) laser light and outputs a digital HIGH signal when laser light strikes the receiver, switching to LOW when the beam is removed or blocked, and is directly compatible with Arduino boards. The laser receiver sensor is the receiving half of a laser tripwire or beam-break security system, designed to pair with a laser diode transmitter module like the HW-493 — the transmitter projects a continuous beam onto this receiver, and breaking the beam (such as someone walking through it) changes the digital output state.

The laser receiver sensor arduino connection is straightforward — power, ground, and a digital signal pin connect to any Arduino digital input, with the pin reading HIGH continuously while the laser beam is aligned and striking the receiver tube, and going LOW (or the inverse depending on internal logic) when the beam is interrupted. Because this is a laser non-modulated tube sensor — meaning it responds to continuous unencoded light rather than a pulsed/modulated signal pattern — the laser receiver sensor module can also respond to other bright continuous light sources, including direct sunlight, which may cause false “beam detected” readings in outdoor or brightly lit environments.

One practical trade-off: because the non-modulated design cannot distinguish the transmitter’s laser from ambient bright light, this sensor pair works best in controlled indoor lighting or shielded enclosures — outdoor laser tripwire applications may require additional shielding or a modulated (encoded) laser pair for reliable false-trigger-free operation. Available from StemVolt, this laser receiver sensor module is ideal for engineers and makers developing laser detection, optical sensing, and positioning projects that require reliable non-modulated laser signal reception.

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Features:

• Digital HIGH/LOW output directly readable by Arduino digital pins
• Pairs with laser diode transmitter for tripwire beam-break circuits
• 5V DC operation matches standard Arduino logic level requirements
• Non-modulated design responds to any continuous bright light source
• Simple 3-wire connection for breadboard and project enclosure builds

Technical Specifications:

Applications:

• Laser Receiver used for Arduino laser tripwire security alarm build
• College project uses laser receiver sensor for beam-break demo circuit
• Security system uses laser receiver sensor arduino for entry detection alert
• Indoor lab uses laser non-modulated tube sensor for India tripwire demo
• Counter circuit uses laser receiver sensor module for object pass detection

Package Includes:

• 1 x Laser Receiver Sensor Module