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Tools for Monitoring Plant Lighting

Cat. No. QSW-01
Multi-Mode Quantum Meter
with integral sensor

The QSW-01 quantum meter features a compact design with a state-of-the-art light sensor located on top of the meter.   The QSW-01 also features a large, stable LCD display which shows PPF units directly as µmol m-2 s-1.  Select between two preset display modes: sunlight or fluorescent light depending upon the light source you wish to measure.  Operation is simple.  Select the display mode and take your reading. 

The instructions include a list of  correction factors  to easily convert PPF from other light sources such as  incandescent, high pressure sodium or metal halide lamps.

Image of the BQM-01 Quantum meter with intregral sensor
Cat. no. Description $ Price
QSW-01 Multi-mode  quantum meter with integral sensor ---


  • Display Modes: fluorescent lighting and sunlight.
  • Range: Single 0 to 2000 µmol m-2 s-1 (full sunlight).
  • Sensor Location - Integral to meter
  • Cosine response: Cosine corrected
  • Spectral response: (see graph)
  • Error correction: (see graph)
  • Temperature response: Less than 2% error from 10 to 35 degrees C.
  • Display: 3 1/2 digit LCD, 1.2 cm height.
  • Power: standard 9V battery (included).
  • Dimensions: 126 x 70 x 24 mm.
  • Weight: 140 g.

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