RKI Replacement PH3 Sensor ESR-A13D-PH3

RKI Replacement Phosphine (PH3) Sensor for the GX-3R Pro or SC-04 Series Single Gas monitor. The PH3 sensor has a range of 0-20.00 ppm. When ordering an individual sensor, make sure to also order the sensor's humidity filter at the same time. The PH3 sensor utilizes a humidity filter to prevent unstable readings around 0 ppm.

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:
https://www.rkiinstruments.com/download/gx3r-reprograming/

Note: H2S and PH3 is not a practical combination. If you already have H2S installed in your GX-3R Pro, you will need to turn that channel off. Instructions for how to turn off a channel can be found in the "Changing the Gas Combination" section of the GX-3R Pro manual.

Part Number:
ESR-A13D-PH3

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