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Tools for Monitoring Plant Lighting

Cat. No. MQ-100
Basic Quantum Meter
with integral sensor

The compact Apogee Instruments model MQ-100 light meter is the latest generation of basic handheld quantum meter featuring a state-of-the-art quantum sensor built right into the top of the meter, i.e. "integral" to meter body.  The MQ-100 features a greatly expanded, stable LCD display which prominently shows instantaneous Photosynthetic Photon Flux (PPF) units directly as µmol m-2 s-1. The new display also indicates selectable modes for light source and data capturing or logging and as well as the currently displayed data sample number.  Modes and on/off are selected with five graphically rendered tactile membrane switches which provide superior reliability under field conditions.  The MQ-100 is factory-calibrated for both artificial and natural light sources, i.e. electric or sunlight.  

The handheld meter comes dual-calibrated for measuring PPF under both electric lighting sources or sunlight.  The MQ-100 may used to measure PPF levels from other sources for which it was not initially calibrated such as incandescent, high pressure sodium and metal halide lamps.

Image of the MQ-100 Quantum Meter with intregral sensor
Cat. no. Description  
MQ-100 Basic quantum meter with integral sensor. $ Price USA (other)

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  • Display Mode: Select for either electric light sources or sunlight.  Factory-calibrated for both.
  • Range: Single 0 to 2000 µmol m-2 s-1 (full sunlight).
  • Sensor Location - Integral with top of case
  • 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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