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    Laser Retro Reflective Photo Sensor, 300mm–8m Adjustable

    SKU: SUCH-PHOS-318M
    $81.59
    ● 300mm–8m ● NPN/PNP, NO/NC ● 3mm spot size ● 650 nm red light
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    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    The good-price laser retro-reflective photoelectric sensor offers an adjustable detection range of 300mm–8m, operates at 10–30V DC, and multiple NPN/PNP output modes. Its 3mm standard spot ensures precise positioning and stable detection, maintaining excellent repeatability (<5% Sr) even in complex environments. It is widely applicable for object positioning, area detection, automatic door systems, conveyor line monitoring, and various other scenarios.

    Feature

    Laser retro reflective photo sensor feature

    • SUCH laser retro-reflective photoelectric sensors feature an adjustable detection range from 300mm to 8m, paired with a red light spot as small as 3mm for stable and precise target recognition.
    • Equipped with multiple output modes including NPN, PNP NO, and NC, suitable for various control systems. The response time as fast as 10ms ensures reliable high-speed detection.
    • The photo sensor's lightweight PBT housing combined with an M12 reflector provides flexible installation options, delivering a compact and efficient overall structure.

    Dimension (unit: mm)

    Laser retro reflective photo sensor dimension

    Detail

    Laser retro reflective photo sensor detail

    Wiring Diagram

    Laser retro reflective photo sensor wiring diagram

    Output Wiring Diagram

    Laser retro reflective photo sensor output wiring diagram

    Specs
    Detection Distance 300mm–8m (adjustable)
    Output Model NPN NO, PNP NO, NPN NC, PNP NC
    Standard Target 100*100 mm white cardboard
    Light Source 650nm red light
    Spot Size Approx. 3mm standard
    Indicator LED Red LED / green LED
    Operating Voltage 10–30V DC
    No-Load Current <10mA
    Max Load Current 150mA
    Leakage Current <0.01mA
    Voltage Drop <1.5V
    Switching Frequency 100Hz
    Response Time 10ms
    Hysteresis <15% (Sr)
    Repeat Accuracy <5% (Sr)
    Protection Rating IP55
    Operating Temperature 0°C to +55°C
    Temperature Drift
    Short-Circuit Protection Yes
    Overload Protection 180mA
    Cable φ4.0mm, 2m PVC cable, 3*0.15mm²
    Product Size 31* 11*21mm
    Reflector Size 61*50*7.5mm
    Housing Material PBT plastic
    Weight Approx. 45.8g + 10g (reflector)
    Certifications CE, RoHS
    Application
    Laser retro reflective photo sensor for logistics conveying

    Logistics Conveying

    Laser retro reflective photo sensor for packaging equipment

    Packaging Equipment

    Laser retro reflective photo sensor for automatic door control

    Automatic Door Control

    FAQ

    The laser retro-reflective photoelectric sensor operates by emitting a focused laser beam onto a reflector, which then returns the light to the receiver. When the target object obstructs the light path or alters the beam direction, the sensor outputs a switching signal. The laser spot is small and highly directional, enabling long-distance, precise, and highly stable detection.

    The reflector can be replaced, but it must be a polarization-maintaining reflector or mirror reflector matching the original model to ensure correct return angle and intensity. During installation, keep the reflective surface clean and align it vertically with the sensor to prevent detection instability.

    Laser beams feature a concentrated spot and strong resistance to stray light, making them less susceptible to interference from environmental reflections, metallic gloss, or external light sources. When used with a mirror reflector, only light matched to the reflector returns to the receiver. This effectively minimizes false triggers, ensuring precise and reliable detection.

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