User 's Manual

Designed for demanding measurements, the GMP343 carbon dioxide probe is an accurate and robust probe type instrument for ecological measurements. Typical applications include carbon monoxide 2 soil respiration, environmental carbon monoxide monitoring, plant growth chambers, and OEM applications. GMP343 uses single-beam, dual-wavelength CO? measurement without moving parts. The GMP343 outputs digital filtering and raw measurements, and can also compensate measurements with internal temperature measurements and user-set relative humidity, pressure, and oxygen values. Combined with the hand-held GM70, the GMP343 provides a tool for accurate in-situ measurements. The GM70 can be used as a display, communication and data recording device.

Excellent accuracy and stability

Visala CARBOCAP® sensor, silicon based non-dispersive infrared (NDIR) sensor

Single beam, dual wavelength CO? measurement, no moving parts

Temperature, pressure, humidity and oxygen compensation options

Wide operating temperature and humidity range

Diffusion and circulation models

Suitable for harsh environment

Main Advantages:

Low operating cost:

GMP343 is a compact, lightweight but sturdy diffused aspirated or circulation CO? probe with low power consumption and heat dissipation. It is designed for harsh environments, especially outdoor environments, to reduce operating costs.

Stable and reliable:

GMP343 has good stability in both time and temperature, and it also has good stability in flow.