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Enabling better global research outcomes in soil, plant & environmental monitoring.

MC-100 Chlorophyll Concentration Meter

The MC-100 Chlorophyll Concentration Meter directly measures and displays chlorophyll concentration from intact leaf samples without damaging the plant material. This data can be used to monitor environmental stress, evaluate the demand and efficacy of fertiliser treatments and optimise harvest schedules throughout the growing season.

Teaching and Research Applications

Monitoring environmental stress, evaluating efficacy of fertiliser treatments, optimising harvest schedules, pest control, crop breeding.

Consistent Readings

The MC-100 uses a larger sampling area to integrate a larger leaf area and provide a more reproducible measurement. A field of view reducer can be used if the leaf width is narrower than the 9.0 mm sample chamber.

State of the Art Optics

The new meter, optimised for field work, includes state-of-the-art optics with rapid sampling, a larger display, and sample memory that can be downloaded to a computer.


Measure Chlorophyll in µmol per m2

Chlorophyll is vital for photosynthesis and its concentration indicates plant health and nutrition. Apogee is proud to announce a major advance in the non-destructive measurement of leaf chlorophyll concentration. Based on the research of scientists at Utah State University, represented in the graphs below, Apogee has developed a competitively priced optical meter that outputs a measured estimate of chlorophyll in units of µmol of chlorophyll per m2 of leaf surface. The linear output of this patent pending meter is a significant improvement over older style meters, which output indexes that are non-linearly related to leaf chlorophyll.

Model: MC-100
Display Output Unit μmol of chlorophyll per m2 of leaf surface
Measurement area 63.6mm2(9.0mm standard diameter),
19.6mm2 (5.0mm diameter with reducer)
Resolution ±10 μmol m2, using the generic equation
Linearity ±1%
Repeatability ±1%
Sample Acquisition Time  <3 Seconds
Storage Capacity 8mb, up to 160,000 data measurements,
94,000 data measurements with GPS data entries
User Interface 50mm by 15mm graphic display screen,
8 push buttons for control and data manipulation
Data Output Mini-B USB port provided for main data transfer,
RS-232 port can be used with GPS for integrated measurement
External GPS Option RS-232 Port (GPS location data is saves with each measurement)
Operating Environment 0 to 50°C
Temperature Drift Temperature compensated source and detector circuitry over full range
Power Requirement Standard 9V DC alkaline battery
Dimensions 152mm length, 82mm width, 25mm height
Warranty 1 year against defects in materials and workmanship

Atkinson, C. J., Dodds, P. a. A., Ford, Y. Y., Le Mière, J., Taylor, J. M., Blake, P. S., & Paul, N. (2006). Effects of Cultivar, Fruit Number and Reflected Photosynthetically Active Radiation on Fragaria × ananassa Productivity and Fruit Ellagic Acid and Ascorbic Acid Concentrations. Annals of Botany, 97(3), 429–441. https://doi.org/10.1093/aob/mcj046

Liberloo, M., Tulva, I., Raïm, O., Kull, O., & Ceulemans, R. (2007). Photosynthetic stimulation under long-term CO2 enrichment and fertilization is sustained across a closed Populus canopy profile (EUROFACE). New Phytologist, 173(3), 537–549. https://doi.org/10.1111/j.1469-8137.2006.01926.x

Parry, C., Blonquist, J. M., & Bugbee, B. (2014). In situ measurement of leaf chlorophyll concentration: Analysis of the optical/absolute relationship. Plant, Cell & Environment, 37(11), 2508–2520. https://doi.org/10.1111/pce.12324

Tegelberg, R., Julkunen‐Tiitto, R., & Aphalo, P. J. (2004). Red: Far-red light ratio and UV-B radiation: their effects on leaf phenolics and growth of silver birch seedlings. Plant, Cell & Environment, 27(8), 1005–1013. https://doi.org/10.1111/j.1365-3040.2004.01205.x