Leaf Porometer Stomatal Conductance: Leaf Porometer
The new Leaf Porometer fits in your hand -- and in your budget. Most commercially available porometers are large, complex, and costly. Decagon's new Leaf Porometer was designed by an agronomist who appreciated the simple porometers he used in his early career. The result is a sleek, innovative, pocket-sized instrument that precisely measures stomatal conductance in less than 30 seconds. The Leaf Porometer consists of a hand-held enclosure with a cable connected to a leaf-clip sensor (read how the Leaf Porometer works). The final reading appears on the display in terms of either conductance or resistance. Saved data can download to a PC using an RS232 cable (included) and download utility software.
 Applications - Water use and water balance.
- Water stress measurements.
- Uptake of herbicides, ozone and other pollutants.
- Research on stomatal functions.
Benefits - No field calibration.
- Portable: battery-powered with no tubes, pumps or fans.
- Non-destructive measurement leaves leaf intact.
- Yearly calibration service available
| Specifications | Conductance range:
0 to 1000 mmol m-2 s-1
Accuracy:
10% manual mode
Operating Environment:
5 to 40 °C, 10 to 90% RH, non-condensing
Power:
4 AA alkaline cells
Battery life:
3 years (battery drain in sleep mode < 50 µA)
3 Units:
mmol m-2s-1, m2s mol-1, s/m
Case size:
15.5 x 9.5 x 3.5 cm (6.1 x 3.7 x 1.4 in)
| Display:
3 x 6 cm, 128 x 64 pixel graphics LCD
Keypad:
6 key, sealed membrane
Data storage:
4095 measurements in flash memory
Interface:
9 pin serial RS232 interface
Measurement aperture diameter:
6.3 mm
Sensor head cable length:
1.2 m (4 ft)
Measurement time:
30 s (in auto mode)
| | For additional technical information and user manual see:
http://www.decagon.com/canopy/leaf_porometer
|
