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ML-020P PAR Sensor

The compact ML-020P PAR sensor or Quantum sensor has a special opical filter to mimic the spectral response function of typical plant leaves. The PAR sensor is most common to be used in horticulture or agriculture aplications. The photon active range between 400 - 700 nm represents the Photosynthetically Active Radiation (PAR) known as Photosynthetic Photon Flux (PPF) or Photosynthetic Photon Flux Density (PPFD) in μmol/m/s (micromoles of photons per meters squared per second).

The low output Voltage of the sensor can be easily converted to a 4-20mA current or higher Voltage using the MS-4..20mA converter. The mV/mA converter can be pre-programmed and optimized within the operating range compatible with common measurement equipment.


  • Fast Response time (10 ms)
  • Horticulture / Agriculture purpose
  • Compact design
  • PAR response curve
  • Glass dome plus diffusor optics
  • Low temperature dependency
PAR sensor


Specifications (Typical) ML-020 PAR
Measurement Range 0~3000 ?mol.s-1.m-2
Output (Approx.) 0~10,000?V (0~10mV)
Internal Impedance 160 ?
Operating temperature range -10 to +50°C
Temp. response (-10 ~ +50°C) 1.1 %
Size Sensor Only: ?22 x 33mm With Mounting Plate: ?80 x 51mm
Weight Sensor Only: 65g With Mounting Plate: 475g
Cable length 5m
*Mounting Plate Optional

*Note: The mounting plate shown in the image is optional


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