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RKI Replacement Carbon Monoxide (CO) and Oxygen (O2) Dual Sensor Combo for the GX-3R Pro or SC-04 Series Single Gas monitor. The CO sensor has a range of 0-300 ppm and the O2 has the range of 0-25% vol.
To replace the sensor to a GX-3R Pro or SC-04 Series Single Gas Monitor, the instrument firmware will need to be updated. This can be done by using the USB to IrDA adapter and following the IrDA Reprogramming instructions.
Reprogramming the GX-3R Pro firmware:
Rki Carbon Monoxide Replacement Sensor Es-1821, Rki Replacement Co Sensor Esr-A13P-Co, Rki Replacement Co Sensor Esr-A13P-Co, Rki Replacement Co (-H2) Sensor Esr-A1Cp-Co-H