WatchGas Fixed Carbon Fiber Probe w/Teflon Insert
Description
The WatchGas Fixed Carbon Fiber Probe eliminates the electrostatic discharge risk that stainless-steel probes cannot address. In ATEX-classified environments where flammable gases or explosive dust are present, a metallic probe can accumulate and discharge static electricity — a potential ignition source. Carbon fiber dissipates charge continuously, keeping your sampling operation spark-free throughout the measurement. At 100 cm (39 in) of fixed reach, it handles manholes, tank hatches, and duct penetrations without requiring an extension hose. The Teflon insert protects reactive gas sensors from adsorption losses, and the included 2 m Last-O-More hose and male luer connect directly to the
SST4-PUMP or any pump-draw monitor.
For a collapsible probe with carrying pouch that prioritizes portability over static control, see the
Aluminum Telescopic Probe. Both probes support pre-entry atmospheric testing per OSHA 29 CFR 1910.146 Appendix B.
Includes:
- GSR-02 carbon fiber probe (100 cm / 39 in fixed length)
- Last-O-More 3×5mm sampling hose, 2 m (6.5 ft)
- Male luer fitting
Part Number:
WG-GSR-02
Technical documents:
SST Accessories Brochure
Frequently Asked Questions
Why does carbon fiber matter for sampling in flammable-gas environments?
In any atmosphere where the gas concentration is at or approaching the Lower Explosive Limit (LEL), electrostatic discharge is a real ignition risk. Stainless steel and aluminum are electrically conductive but can accumulate static charge during handling and then discharge suddenly when grounded. Carbon fiber has an inherent surface resistivity that dissipates charge continuously — preventing the buildup that could discharge as a spark. For confined-space entries in oil and gas, wastewater, or petrochemical settings, the carbon fiber probe is the industry-appropriate tool.
Is this probe compatible with WatchGas SST4 pump monitors?
Yes. The WG-GSR-02 includes a 2 m Last-O-More 3×5mm hose and male luer fitting designed for the
SST4-PUMP sample inlet. The luer connection also mates with most other WatchGas and compatible third-party pump-draw monitors.
Why use a Teflon insert rather than standard sampling tubing for H2S and SO2 monitoring?
Reactive sulfur-bearing gases (H2S, SO2, mercaptans) adsorb onto standard rubber and plastic tubing, reducing the concentration that reaches the sensor. Teflon (PTFE) is chemically inert with essentially zero adsorption for most industrial gases. The Teflon insert in this probe ensures that the gas concentration at the probe tip equals the concentration at the sensor — critical when confirming an atmosphere is within OSHA's permit thresholds.
What is the reach of this probe compared to the telescopic aluminum probe?
The Fixed Carbon Fiber Probe is 100 cm (39 in) — a fixed, non-extending length. The included 2 m Last-O-More hose adds effective reach for deeper pre-entry checks. The
Aluminum Telescopic Probe extends to 75 cm and collapses for pouch storage. If your site does not have a flammable-atmosphere classification requiring anti-static tooling, the telescopic probe's portability may be the better operational fit.
Can PK Safety calibrate my gas monitor and advise on sampling probe selection for my site?
Yes on both counts. PK Safety services the full WatchGas SST line — SST1, SST4 Micro, SST4 Mini, SST4 Pump — with factory-trained technicians at our Alameda, CA facility. Call
800.829.9580 to discuss your site's hazard classification and whether the carbon fiber or telescopic probe is the right fit.
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Description
The WatchGas Fixed Carbon Fiber Probe eliminates the electrostatic discharge risk that stainless-steel probes cannot address. In ATEX-classified environments where flammable gases or explosive dust are present, a metallic probe can accumulate and discharge static electricity — a potential ignition source. Carbon fiber dissipates charge continuously, keeping your sampling operation spark-free throughout the measurement. At 100 cm (39 in) of fixed reach, it handles manholes, tank hatches, and duct penetrations without requiring an extension hose. The Teflon insert protects reactive gas sensors from adsorption losses, and the included 2 m Last-O-More hose and male luer connect directly to the SST4-PUMP or any pump-draw monitor.
For a collapsible probe with carrying pouch that prioritizes portability over static control, see the Aluminum Telescopic Probe. Both probes support pre-entry atmospheric testing per OSHA 29 CFR 1910.146 Appendix B.
Includes:
- GSR-02 carbon fiber probe (100 cm / 39 in fixed length)
- Last-O-More 3×5mm sampling hose, 2 m (6.5 ft)
- Male luer fitting
Part Number:
WG-GSR-02
Technical documents:
SST Accessories Brochure
Frequently Asked Questions
Why does carbon fiber matter for sampling in flammable-gas environments?
In any atmosphere where the gas concentration is at or approaching the Lower Explosive Limit (LEL), electrostatic discharge is a real ignition risk. Stainless steel and aluminum are electrically conductive but can accumulate static charge during handling and then discharge suddenly when grounded. Carbon fiber has an inherent surface resistivity that dissipates charge continuously — preventing the buildup that could discharge as a spark. For confined-space entries in oil and gas, wastewater, or petrochemical settings, the carbon fiber probe is the industry-appropriate tool.
Is this probe compatible with WatchGas SST4 pump monitors?
Yes. The WG-GSR-02 includes a 2 m Last-O-More 3×5mm hose and male luer fitting designed for the SST4-PUMP sample inlet. The luer connection also mates with most other WatchGas and compatible third-party pump-draw monitors.
Why use a Teflon insert rather than standard sampling tubing for H2S and SO2 monitoring?
Reactive sulfur-bearing gases (H2S, SO2, mercaptans) adsorb onto standard rubber and plastic tubing, reducing the concentration that reaches the sensor. Teflon (PTFE) is chemically inert with essentially zero adsorption for most industrial gases. The Teflon insert in this probe ensures that the gas concentration at the probe tip equals the concentration at the sensor — critical when confirming an atmosphere is within OSHA's permit thresholds.
What is the reach of this probe compared to the telescopic aluminum probe?
The Fixed Carbon Fiber Probe is 100 cm (39 in) — a fixed, non-extending length. The included 2 m Last-O-More hose adds effective reach for deeper pre-entry checks. The Aluminum Telescopic Probe extends to 75 cm and collapses for pouch storage. If your site does not have a flammable-atmosphere classification requiring anti-static tooling, the telescopic probe's portability may be the better operational fit.
Can PK Safety calibrate my gas monitor and advise on sampling probe selection for my site?
Yes on both counts. PK Safety services the full WatchGas SST line — SST1, SST4 Micro, SST4 Mini, SST4 Pump — with factory-trained technicians at our Alameda, CA facility. Call 800.829.9580 to discuss your site's hazard classification and whether the carbon fiber or telescopic probe is the right fit.
The WatchGas Fixed Carbon Fiber Probe eliminates the electrostatic discharge risk that stainless-steel probes cannot address. In ATEX-classified environments where flammable gases or explosive dust are present, a metallic probe can accumulate and discharge static electricity — a potential ignition source. Carbon fiber dissipates charge continuously, keeping your sampling operation spark-free throughout the measurement. At 100 cm (39 in) of fixed reach, it handles manholes, tank hatches, and duct penetrations without requiring an extension hose. The Teflon insert protects reactive gas sensors from adsorption losses, and the included 2 m Last-O-More hose and male luer connect directly to the SST4-PUMP or any pump-draw monitor.
For a collapsible probe with carrying pouch that prioritizes portability over static control, see the Aluminum Telescopic Probe. Both probes support pre-entry atmospheric testing per OSHA 29 CFR 1910.146 Appendix B.
Includes:
- GSR-02 carbon fiber probe (100 cm / 39 in fixed length)
- Last-O-More 3×5mm sampling hose, 2 m (6.5 ft)
- Male luer fitting
Part Number:
WG-GSR-02
Technical documents:
SST Accessories Brochure
Frequently Asked Questions
Why does carbon fiber matter for sampling in flammable-gas environments?
In any atmosphere where the gas concentration is at or approaching the Lower Explosive Limit (LEL), electrostatic discharge is a real ignition risk. Stainless steel and aluminum are electrically conductive but can accumulate static charge during handling and then discharge suddenly when grounded. Carbon fiber has an inherent surface resistivity that dissipates charge continuously — preventing the buildup that could discharge as a spark. For confined-space entries in oil and gas, wastewater, or petrochemical settings, the carbon fiber probe is the industry-appropriate tool.
Is this probe compatible with WatchGas SST4 pump monitors?
Yes. The WG-GSR-02 includes a 2 m Last-O-More 3×5mm hose and male luer fitting designed for the SST4-PUMP sample inlet. The luer connection also mates with most other WatchGas and compatible third-party pump-draw monitors.
Why use a Teflon insert rather than standard sampling tubing for H2S and SO2 monitoring?
Reactive sulfur-bearing gases (H2S, SO2, mercaptans) adsorb onto standard rubber and plastic tubing, reducing the concentration that reaches the sensor. Teflon (PTFE) is chemically inert with essentially zero adsorption for most industrial gases. The Teflon insert in this probe ensures that the gas concentration at the probe tip equals the concentration at the sensor — critical when confirming an atmosphere is within OSHA's permit thresholds.
What is the reach of this probe compared to the telescopic aluminum probe?
The Fixed Carbon Fiber Probe is 100 cm (39 in) — a fixed, non-extending length. The included 2 m Last-O-More hose adds effective reach for deeper pre-entry checks. The Aluminum Telescopic Probe extends to 75 cm and collapses for pouch storage. If your site does not have a flammable-atmosphere classification requiring anti-static tooling, the telescopic probe's portability may be the better operational fit.
Can PK Safety calibrate my gas monitor and advise on sampling probe selection for my site?
Yes on both counts. PK Safety services the full WatchGas SST line — SST1, SST4 Micro, SST4 Mini, SST4 Pump — with factory-trained technicians at our Alameda, CA facility. Call 800.829.9580 to discuss your site's hazard classification and whether the carbon fiber or telescopic probe is the right fit.
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Specifications
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Product Weight (lbs.)
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