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SpotOn Quantum Par Light Meter

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Product Information


    The SpotOn® Quantum PAR Light Meter offers the following features:

    • Provides accurate PAR light readings from ANY light source
      • Full sun to full shade indoors or outdoors
      • Artificial light sources (LED, High Pressure Sodium, Metal Halide, Florescent, Halogen…)
    • Three modes of operation
      • Instant Spot Measurement mode for PAR light readings
      • Scan mode for quickly averaging PAR over an area
      • DLI mode shows Daily Light Integral on the LCD (no computer needed)
    • Compact and easy to use
    • Water and impact resistant
    • Integral mounting plate for: stand, stake, lanyard & hanger hole, and magnet mounts
    • 1/4-20 threaded hole for mounting on camera tripods and stands
    • Includes a sensor cover and soft carrying case


    Range PAR Light: 0.0 to 6,500 µmol m-2 s-1
    Daily Light Integral (DLI): 0.0 to 560.0 moles m-2 day-1
    Display Resolution PAR Light: 0.1 µmol m-2 s-1 from 0.0 to 99.9 / 1 µmol m-2 s-1 from 100 to 6,500
    Daily Light Integral (DLI): 0.1 moles m-2 day-1
    Accuracy +/- 5% (each meter is calibrated to a NIST traceable light sensor on a broad-spectrum light source)
    Azimuth Error +/- 1% over 360°
    Daily Light Integral (DLI) Calculated continuously from light readings every 3 minutes
    Water Resistant IP-65 rated for use in rain, irrigation, and condensing environments (do not submerge)
    Operating Environment 32-130°F(0-55°C) with 0-100% RH condensing ok
    Battery CR2032 3v coin cell lithium included (2-year battery life)
    Size (W x L x D) 1.75" x 5.75" x .85"
    Weight .17 lbs

    48035650-Spectral-Graph Specifications

    *Click the table to zoom in

    48035650-Cosine-Graph Specifications

    *Click the table to zoom in


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