CO2 External Probe for U2422, 0 - 10,000 ppm, M12 Connector, without Cable
The Comet SN274 is an external CO2 probe for use with Comet U2422 dataloggers manufactured from 04/2023 on. The probe is designed to measure carbon dioxide concentration in the air in chemically non-aggressive environments. The CO2 measurement is based on the dual wavelength NDIR principle, which automatically compensates for aging effects.
The SN274 probe offers protection in harsh environments with its IP65 rating and replaceable filter. The probe is made for connection to Comet devices equipped with input for external CO2 probes. The probe is interchangeable; calibration constants are saved in the internal memory of the probe. The multiple point CO2 and temperature adjustment procedure provides excellent CO2 measurement accuracy over the entire temperature working range, which is a must for process control and outdoor applications.
PLEASE NOTE, an Extension cable is required (sold separately). They are available in 1-, 2-, or 4-meter lengths. The CO2 probe uses an M12 circular connector and cannot be directly connected to U2422, which uses an M8 circular connector.