CO₂ Probe GMP343

GMP343 Carbon Dioxide Probe

GMP343

GMP343 in a forest

CO₂ Probe GMP343

for Demanding Measurements

The Vaisala CARBOCAP® Carbon Dioxide Probe GMP343 is an accurate and rugged probe-type instrument for ecological measurements. Typical applications include CO₂ soil respiration, ambient CO₂ monitoring, plant growth chambers, and OEM applications. The GMP343 incorporates a single-beam, dual-wavelength CO₂ measurement with no moving parts.

The GMP343 can output both numerically filtered and raw measurement data and it can also compensate the measurement with an internal temperature measurement and user-set relative humidity, pressure and oxygen values. In combination with the handheld GM70, the GMP343 provides a tool for accurate in-situ measurement. The GM70 can be used as a display, communication and data logging device.

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Vaisala CARBOCAP Technology

Key Benefits

Low operating costs

The GMP343 is a small, lightweight but rugged diffusion-aspirated or flow-through CO2 probe with low power consumption and heat emission designed for use in harsh environments, especially outdoors, which reduces the operating costs.

Stable and reliable

The GMP343 has good stability both in terms of time, and temperature and also in a good stability flow.

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Overview

Each GMP343 is calibrated using ±0.5 % accurate gases at 0 ppm, 200ppm, 370 ppm, 600 ppm, 1000 ppm, 4000 ppm and 2 %. Calibration is also done at temperature points of -30 °C, 0 °C, 25 °C and 50 °C. If needed, the customer can recalibrate the instrument using the multipoint calibration (MPC) feature allowing up to 8 user-defined calibration points.

Features

Excellent accuracy and stability

Vaisala CARBOCAP® Sensor, a silicon-based non-dispersive infrared (NDIR) sensor

A single-beam, dual-wavelength CO2 measurement with no moving parts

Compensation options for temperature, pressure, humidity and oxygen

Wide operating temperature and humidity ranges

Diffusion and flow-through models

For harsh environments

Details

Specifications

Datasheet

GMP343 Carbon Dioxide Probe For Demanding Measurements169.78 KB

Documents

Application Note

Equilibrium sampling in soil, snow and aquatic ecosystem measurements1.89 MB

How to Measure CO2?609.94 KB

Brochure

Wiring Junction Box for GMP343348.73 KB

Outdoor Carbon Dioxide Measurements for Demand Controlled Ventilation166.52 KB

Datasheet

GMP343 Carbon Dioxide Probe For Demanding Measurements169.78 KB

Manual

215519 Soil Adapter Kit for Horizontal Positioning of GMP343420.01 KB

215520 Soil Adapter Kit for Vertical Positioning of GMP343405.06 KB

GMP343 User's Guide in English2.01 MB

Order Form

GMP343 Order Form Global32.32 KB

GMP343 Order Form USA11.93 KB

Technical Drawing

GMP343 Wiring Diagram in English613 KB

Technology Description

CARBOCAP Technology description216.34 KB

Vaisala News Article

Diffusion-Based Soil Respiration Measurements81.62 KB

Free Air CO2 Enrichment Experiment in Northern Japan205.61 KB

Greenhouse Gases and Global Warming1.52 MB

Meeting the Challenge of Outdoor Carbon Dioxide Measurements246.64 KB

Outdoor plant growth experiments in Elevated CO2 Atmospheres166.06 KB

Studying the Changing Climate in Controlled Environment Chambers194.15 KB

Surge in studies on Carbon Cycles of the Ecosystems of the World95.7 KB

Success Story

CO2 Flux Measurement in Japanese Forests1.45 MB

CARBOCAP® Technology Aids Innovative Research on Carbon Emissions124.64 KB

Stories

How to measure CO2

Blog | Oct 24, 2018

Why Is Measuring CO2 Important?

Most of us know that CO₂ is a colorless, odorless gas that’s soluble in water and often seen as the bubbles in fizzy drinks. But it’s also a...

Vaisala´s Carbocap Sensor technology

Success Story

Vaisala CARBOCAP® Sensor for Measuring Carbon Dioxide

The CARBOCAP® story began in 1992, when micromechanical sensors were being intensively researched at Vaisala. The groundbreaking idea of...

Young plant in the morning light

Success Story

Studying the Changing Climate in Controlled Environment Chambers

The University of Sheffield can be proud of their controlled environment facilities. The Department of Animal and Plant Sciences houses a total...

Japanese Bamboo Forest

Success Story

From the Woods and Into the Air

Understanding the carbon dioxide flux in forest ecosystems has become an important subject in the international effort to prevent global warming...

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