Celebrating our 30th year.
Quality Instrumentation for the Life Sciences

Accurate, Rapid and Reliable Measurement of Soil and Net Canopy CO2 Flux…. and Affordable

EGM-5 Soil Respiration System

PP Systems has long been recognized as a manufacturer of high level scientific instrumentation for the soil sciences.  Over the past 30 years our instruments have been widely referenced in numerous, prestigious publications and articles.  We offer a very affordable soil respiration system based on the NEW EGM-5 Portable CO2 Gas Analyzer and SRC-2 Soil Respiration Chamber.  The SRC-2 Soil Respiration Chamber and CPY-5 Canopy Assimilation Chamber can also be used with our CIRAS-3 Portable Photosynthesis System and TARGAS-1 Portable Photosynthesis System for closed system measurement of soil respiration and net canopy CO2 flux.

Soil CO2 Efflux

The SRC-2 Soil Respiration Chamber connects directly to the EGM-5 console.  It includes a fan for flushing the chamber prior to measurement and for sampling.  It also includes an internal sensor for measurement of air temperature near the soil surface.

At the conclusion of each measurement sequence the results are displayed on a high resolution, touch display with outstanding readability under high sunlight.

Soil CO2 Efflux Screenshot
SRC-2 Soil Respiration Chamber

SRC-2 Soil Respiration Chamber

Soil CO2 Efflux

The SRC-2 Soil Respiration Chamber with built-in temperature sensor can be used with the EGM-5 and CIRAS-3 for closed system measurement of soil respiration.

Dimensions: 150 mm (Height) x 100 mm (Diameter)

Optional collars (as shown in picture) are available from PP Systems.

CPY-5 Canopy Assimilation Chamber

Net Canopy CO2 Flux

The CPY-5 can be used with the EGM-5 and CIRAS-3 for closed system measurement of net canopy CO2 flux on low lying vegetation.

Dimensions: 145 mm (Height) x 146 mm (Exposed Diameter)
Exposed Area: 167 cm2

It includes sensors for measurement of air temperature and PAR (Photosynthetically Active Radiation).

STP-2 Soil Temperature Probe

STP-2 Soil Temperature Probe

Soil Temperature

Our rugged STP-2 Soil Temperature Probe can be used to measure soil temperature.  It is commonly used with our SRC-2 Soil Respiration Chamber.

Soil Temperature Range

– Range: 0-50 oC
– Accuracy: ± 0.3 oC at 25 oC
Hydra Probe II - Soil Moisture and Soil Temperature

Hydra Probe II

(Stevens Water Monitoring Systems, Inc.)

Soil Moisture and Soil Temperature

The Hydra Probe II (Stevens Water Monitoring Systems, Inc.) features a “dielectric impedance” measurement principle and it can be used with the EGM-5 for accurate measurement of soil moisture and soil temperature from a single probe.

Soil Moisture Range

– 0-100% (dry to fully saturated)

Soil Temperature Range

– Range: -10-55 oC
– Accuracy: ± 0.3 oC at 25 oC