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EARS miniPPM-300 Plant Photosynthesis Meter
€4,000.00
The most complete model of the EARS miniPPM series. Besides fluorescence (F, Fm) and photosynthesis yield (Y) it measures photosynthetic active radiation (PAR) and the photosynthesis rate (P), runs long unattended measuring series, imposes pre-defined light levels and records the light-photosynthesis curve of a plant automatically. Results are stored on board, on microSD card or on a PC over USB. 250 grams, about 3,000 measurements per charge, one-year warranty, shipped from the Netherlands.
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EARS Plant Photo Synthesis Meter miniPPM-300
The miniPPM is the third generation of the EARS Plant Photosynthesis Meter, a handheld modulated saturation-pulse fluorometer. It uses the chlorophyll fluorescence of a leaf to measure photosynthesis: hold the clip on the leaf, press the button, and the measurement is complete within a second. Laboratory tests show stable, reproducible results. Compact, light (250 grams) and simple to operate, it fits research, education and everyday practice in agriculture and horticulture.
EARS Plant Photosynthesis Monitoring B.V. (Wageningen, the Netherlands) has developed chlorophyll-fluorescence instruments since 1983 and patented its Plant Photosynthesis Meter in the 1990s. All miniPPM meters ship from the Netherlands with a one-year warranty.
What the miniPPM-300 measures
- Fluorescence in ambient light (F) and maximum fluorescence (Fm)
- Photosynthesis yield (Y) and photosynthesis rate in ambient light (P)
- Photosynthetic Active Radiation (PAR)
- Photosynthesis at pre-defined light levels and full light-photosynthesis curves
- Long unattended measuring series, stored with date and time
Steering the light climate in greenhouses
Too much light stresses and damages plants. Growers use screens, but rarely know the exact light level at which to start screening; it differs per species, variety, season, water status and CO2 level. The miniPPM-300 measures the light-photosynthesis curve of a crop fully automatically, so the optimum and the damage threshold are read directly from the instrument. As a rule of thumb screening is needed once the photosynthesis yield measured with the PPM drops below 40%. The same measurement supports irrigation management and the reduction of herbicide use.
miniPPM models compared
| miniPPM-100 | miniPPM-300 | |
|---|---|---|
| Fluorescence in ambient light (F) | yes | yes |
| Maximum fluorescence (Fm) | yes | yes |
| Photosynthesis yield (Y) | yes | yes |
| Measurements at all light levels | yes | yes |
| Photosynthetic Active Radiation (PAR) | – | yes |
| Photosynthesis rate in ambient light (P) | – | yes |
| Long unattended measuring series | – | yes |
| Photosynthesis at pre-defined light levels | – | yes |
| Light-photosynthesis curves | – | yes |
| Read-out and storage on microSD card | – | yes |
| On-board control and storage | – | yes |
| PC control (USB) and storage | – | yes |
Applications
- Herbicide efficacy and damage assessment
- Quality of plants, vegetables and fruit
- Seedling screening for breeding
- Plant photosynthesis yield monitoring
- Education: a direct look at the health and growth of plants
Specifications
- Handheld modulated saturation-pulse fluorometer, measurement within one second
- Weight 250 g
- About 3,000 measurements on a full battery charge, USB charging
- LCD display with several read-out options; measurements stored with date and time
- One-year warranty; shipped from the Netherlands
In the box
- Protective case
- USB data cable and USB charger with a 4-piece adapter set for different countries
- 2 GB microSD card and microSD-to-USB adapter
- English / Dutch manual
Optional items (on request)
- 12 V fast charger / power supply
- RS-232 or RS-485 communication port
- 433 or 915 MHz wireless remote PC connection
- Tripod stand with gooseneck and 1/4" UNC adapter