HANDY-PEA

Handy-PEA is a compact, portable continuous-excitation type chlorophyll fluorescence analyser. The rugged yet lightweight design makes Handy-PEA particularly suitable for rapid, large scale screening of samples in the field or greenhouse in both research and teaching applications.

It utilises the continuous excitation fluorescence measurement principle. High time resolution (100KHz initial sampling rate) electronics and saturating levels of illumination (3000µmol m^-2 s^-1) permit accurate monitoring of the time dependent fluorescence induction kinetics observed when a sample is strongly illuminated after a period in darkness (Kautsky effect). Typical measurements take only 1 second, providing a very high throughput capability for large scale screening of samples.

Features

PLANT MOISTURE STRESS MEASUREMENT

Plant moisture stress (PMS), or plant water potential, indicates the demand for water within a plant. PMS integrates the soil moisture tension in the rooting zone (the water supply), the resistance to water movement within the plant, and the demands for transpiration imposed by the environment (heat load, humidity, wind, etc.). Thus a PMS measurement indicates the water status of a plant from the "point of view of the plant". PMS also tells how the environment affects the plant. This information can be used to evaluate how much need the plant has for water or how well it is adapted to its environment.

DISSOLVED OXYGEN MEASUREMENT

The package for measuring dissolved O₂ has featues included in no other polarographic O2 monitoring system. The O₂ electrode within the water-jacketed cuvette may be used for measurements of O₂ consumption (or production) by biological samples or exzymatic reactions. Various chamber volumes from 0.2ml to 50ml.

PHOTOSYNTHESIS YIELD ANALYSER

The Photosynthesis Yield Analyzer MINI-PAM specializes in the quick and reliable assessment of the effective quantum yield of photochemical energy conversion in photosynthesis. Its operation is very easy. For measurement of photosynthesis yield just one key has to be pressed (START). Then automatically the fluorescence yield (F) and the maximal yield (Fm) are measured, the photosynthesis yield (Y = ΔF/Fm) calculated, the obtained data displayed and stored internally for later analysis.

RANGE FINDERS / HYPSOMETERS

The internal electronic tilt sensor provides quick vertical angle measurements for easy determination of heights of trees and other objects. Features include: LED red dot sighting system, high tech hidden lens design, low battery indicator, and an easy-to-read, large LCD display. Completely eyesafe and conform to all provisions of US21 CRF 1040.1 (CDRH Class I Laser Product). Cordura carrying case included. Units: Distance: feet, meters, or yards; Angle: degrees or percent grade. Range (nonreflective/reflective targets): 100LH, 100/400 yds.; 400LH, 400/1,000 yds. Resolution: .5´. Accuracy: Distance: ±1 yd.; Angle: ±0.2°; Height: ±1 ft. (plus 5% of reading). Angle resolution: 0.5°. Power: 9 Volt battery (included). Weight: 11 oz. Dimensions: 4" x 5-1/4" x 1-3/4".

CHLOROPHYLL CONTENT METER

The new CCM-200 Chlorophyll Content Meter accurately determines chlorophyll content in plants and crops. Especially useful for improving Nitrogen management programs, the CCM-200 is an ideal instrument for both research and teaching. The CCM-200 provides agronomists, researchers and teachers with reliable, repeatable and easy to perform chlorophyll content determinations. The ample on-board data storage and hand-held design makes the CCM-200 the most field efficient and affordable chlorophyll content meter on the market.