Product Overview
The RKI ESR-X13P-OXY is the replacement oxygen (O2) sensor for the GX-3R, GX-3R Pro, and GX-Force. It is RKI’s specified O2 cell for these instruments (0–25% volume range on the monitor).
This is a lead-free electrochemical oxygen sensor. On the GX-3R / GX-3R Pro platform, RKI rates typical O2 sensor service life around 3–5 years, depending on use and environment. Replace the sensor when response slows, calibration fails to hold, or the instrument reports an O2 sensor fault.
Compatibility
- RKI GX-3R
- RKI GX-3R Pro
- RKI GX-Force
Part number: ESR-X13P-OXY. This is not the OX-600 / OS-BM1 style cell used on other RKI fixed or portable lines.
After installation
- Install only in a clean, dry environment using the instrument’s sensor retainer and gasket (GX-3R sensor gasket 07-6057 when applicable).
- Perform a full calibration with certified calibration gas after any O2 sensor change before returning the monitor to service.
- For stock 4-gas GX-3R configurations, pair with the matching LEL (NCR-6309) and H2S/CO combo (ESR-A1DP-COHS) sensors when those channels are fitted.
Ideal Calibrations stocks ESR-X13P-OXY for field service and can calibrate GX-3R series monitors after sensor replacement.
