Quantum PAR/DLI Light Meter

PAR- or Quantum meter measures the total amount of light which can be used by plants for photosynthesis (= conversion of light energy to chemical energy).

PAR is more valuable than Lux or Foot-Candles as it measures only the light used by plants for photosynthesis. According to the light source, the calibration is selectable (electric / solar).

This handheld quantum meter 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, Fluorescent, 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).

• Integral mounting plate for: stand, stake, lanyard & hanger hole, and magnet mounts.
• Small size allows light readings in tight spaces without needing an external sensor.
• ¼-20 threaded hole for mounting on camera tripods & stands.
• Includes sensor cover & soft carrying case

Technical data:

• Measuring range:
  - PAR Light: 0 – 6,500 μmol / s*m2, 400 to 700nm
  - DLI (Daily Light Integral): 0 – 560 moles m-2 day-1
• Resolution: 1 μmol / s*m2
• 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 (condensation ok)
• Battery: CR2032 3v lithium coin cell included (2-year battery life)
• Response Data: (Red line is meter response; Black line is ideal response)
• Size & Weight: 15 × 5 × 2 cm
• Weight: 77g

Item-No.: 32800 – Quantum PAR/DLI Light Meter