RKI Instruments
RKI Carbon Monoxide (CO) / Hydrogen Sulfide (H2S), 0-2,000 / 0-200 ppm, for GX-3R, GX-3R Pro, GX-Force, GasWatch 3, 04 Series & GX-6100 Combo Replacement Sensor
- SKU:
- ESR-A1DP-COHS
- MPN:
- ESR-A1DP-COHS
Description
The RKI ESR-A1DP-COHS is a genuine RKI combination Carbon Monoxide (CO) and Hydrogen Sulfide (H2S) electrochemical replacement sensor designed for compatible RKI portable gas monitors.
This dual-gas sensor provides a Carbon Monoxide range of 0–2,000 ppm and a Hydrogen Sulfide range of 0–200 ppm, allowing both gases to be monitored from a single combination sensor.
RKI identifies the ESR-A1DP-COHS for the GX-3R, GX-3R Pro, GX-Force, GasWatch 3, 04 Series and GX-6100.
Important: This is a combination CO/H2S sensor and should not be confused with RKI's separate ESR-A13P-CO Carbon Monoxide sensor, ESR-A13I-H2S Hydrogen Sulfide sensor, or ESR-A1CP-CO-H hydrogen-compensated CO sensor. Verify the installed sensor part number and instrument configuration before ordering.
For assistance confirming the correct replacement sensor for your RKI instrument, contact CPS Calibrations at 865-900-8844 or info@cpscalibrations.com.
- Genuine RKI Instruments replacement sensor
- Combination Carbon Monoxide (CO) and Hydrogen Sulfide (H2S) sensor
- CO measurement range: 0–2,000 ppm
- H2S measurement range: 0–200 ppm
- Electrochemical sensing technology
- Monitors two toxic gases from one combination sensor
- Compatible with multiple RKI portable gas monitors
- Direct replacement for RKI part number ESR-A1DP-COHS
| Manufacturer | RKI Instruments |
| Part Number | ESR-A1DP-COHS |
| Target Gases | Carbon Monoxide (CO) / Hydrogen Sulfide (H2S) |
| CO Measurement Range | 0–2,000 ppm |
| H2S Measurement Range | 0–200 ppm |
| Sensor Technology | Electrochemical Combination Sensor |
| Compatible Instruments | RKI GX-3R, GX-3R Pro, GX-Force, GasWatch 3, 04 Series, GX-6100 |
RKI documentation identifies ESR-A1DP-COHS for:
- RKI GX-3R
- RKI GX-3R Pro
- RKI GX-Force
- RKI GasWatch 3
- RKI 04 Series – compatible CO/H2S configuration
- RKI GX-6100
Sensor: ESR-A1DP-COHS
Gases: Carbon Monoxide (CO) / Hydrogen Sulfide (H2S)
CO Range: 0–2,000 ppm
H2S Range: 0–200 ppm
Technology: Electrochemical Combination Sensor
Related Filter: RKI lists part number 33-7130 as the scrubber disk filter for the CO/H2S combination sensor in applicable instruments.
Important: Do not use the charcoal filter specified for RKI's standard CO or H2-compensated CO sensors with this combination sensor unless specifically directed by RKI. Verify the installed sensor part number and instrument configuration before ordering replacement parts.
Need help confirming compatibility? Contact CPS Calibrations at 865-900-8844 or info@cpscalibrations.com.