PE Energy supplies fixed gas detection systems for oil & gas, petrochemical, and industrial facilities — point and open-path detectors, sensors, transmitters, and controllers for combustible (LEL), toxic, and oxygen hazards. Use the table below to select a detector by target gas and detection method; every model links to its specification page where you can request a quote.
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Select a gas detector by target gas and method
| Target gas / hazard | Detection method | Models PE Energy supplies |
|---|---|---|
| Hydrogen sulfide (H2S) | Electrochemical point | TP-700, TP-624D, TP-524D, DGi-TT7-E |
| Hydrogen sulfide (H2S) | Open-path / laser | Quasar-950, GD1-H2S |
| Combustible / LEL (hydrocarbons) | Infrared point | IR-700-CH, FP-700, PIRECL, GD10-P |
| Combustible / LEL (hydrocarbons) | Catalytic bead | CGS, 505 |
| Combustible / LEL (hydrocarbons) | Open-path line-of-sight | LS2000, Quasar-900, Teledyne-SafEye |
| Carbon dioxide (CO2) | Infrared | IR-700-CO2, Model-1000-CO2, PIRECL-CO2, GD10P-CO2 |
| Oxygen (O2) | Electrochemical | DM-700-O2 |
| Toxic gases (CO, Cl2, etc.) | Electrochemical | DM-700-Tox, Model-100-Tox, GTX, CTX-300, OLCT-10-Tox |
| Volatile organics (VOC) | Photoionization (PID) | PI-700 |
| Controllers, alarm & display | System integration | Model-X40, OLCT-700-710, Teledyne-8800, EQ30XX, UD10, iTrans-2 |
| Calibration & accessories | Field calibration / maintenance | GT3000, 505-1, CGS-Accessories |
What types of fixed gas detectors does PE Energy supply?
PE Energy offers point detectors (electrochemical, catalytic-bead, and infrared) for spot monitoring at a release source, and open-path / line-of-sight detectors that watch a beam across a wide area. The catalog covers combustible (LEL), toxic, oxygen, CO2, and VOC hazards from Teledyne Detcon, Det-Tronics, Spectrex, and Oldham Simtronics.
How do I choose between point and open-path gas detection?
Point detectors are best where a leak source is known and localized (a flange, pump seal, or compressor). Open-path detectors cover perimeters, fence lines, and large open areas with a single beam, catching a gas cloud that might drift between point sensors. Many facilities combine both.
Which sensor detects hydrogen sulfide (H2S)?
For H2S, PE Energy supplies electrochemical point sensors such as the Teledyne Detcon TP-700 / TP-624D / TP-524D series, and open-path laser detection via the Spectrex SafEye Quasar 950 and Oldham Simtronics GD1 for wide-area sour-service coverage.
Which Teledyne Detcon 700-series sensor fits my gas?
The Detcon 700 series shares one transmitter across field-interchangeable sensors, so you match the sensor to the target gas: IR-700-CH for combustible and IR-700-CO2 for CO2 (infrared), FP-700 for combustible, TP-700 for H2S and toxics, DM-700 for oxygen and toxics, and PI-700 for VOCs. The OLCT 700/710 platform extends the same family for fixed-area coverage.
Do these gas detectors require calibration?
Yes. Fixed gas detectors are calibrated on a schedule with a known test gas to keep readings accurate. PE Energy supplies certified calibration kits (such as the GT3000 and CGS combustible kits) and accessories so a site can maintain its own compliance program.
Request a gas detection quote
Tell us your target gas, area classification, and number of points, and PE Energy will recommend the right detectors and controllers. Request a quote. See also flame detection and our Teledyne Detcon line.