Detector for combustible and natural gases - propane, butane, methane

Combustible and natural gas detector for leak detection workers

General description of the multi-gas detector for combustible and natural gases

This combustible gas detector is designed to quickly and effectively detect a wide range of flammable gases, whether they are present as pure gases, industrial vapors, or volatile mixtures. Accurate, portable, and easy to use, the device is an essential tool for technicians, inspectors, plumbers, industrial operators, mechanics, refinery workers, or anyone responsible for leak detection.

Thanks to its high sensitivity and visual and audible alarm system, it can identify potential risks before a dangerous situation develops.

Features of the gas detector

The device detects a wide variety of combustible or toxic gases found in residential, commercial, and industrial environments. The list of gases detected includes:

• natural gas, methane, propane, butane, ethane;
• industrial solvents and vapors such as lacquer, paint thinner, gasoline, or naphtha;
• acetone, alcohol, ammonia, or aircraft fuel vapors.

The detector's design facilitates routine or emergency inspections. It can be operated with one hand, allowing for safe handling in confined spaces or when the user is wearing PPE. The flexible 406 mm (16 in) gooseneck allows access to hard-to-reach areas such as fittings behind machines, high pipes, or confined spaces.

The device has an adjustable sensitivity wheel that allows the user to fine-tune detection to detect very low concentrations or, conversely, reduce sensitivity in saturated environments.

Properties of the gas detector with sensitivity of 50 ppm and above

This detector stands out for the following features:

• High sensitivity: detects leaks from 50 ppm (methane).
• Comprehensive alarm system:
  • audible alarm (faster ticking depending on concentration),
  • three-color LED indicating the intensity of the gas detected.
• Alarm threshold preset at 10% LEL for methane, ensuring a response before dangerous levels are reached.
• User-replaceable sensor, extending the detector's service life.
• Headphone jack (for noisy environments).
• Battery-powered, ideal for field operations.

The device can be calibrated for different concentrations or combustible gases, up to 40% LEL, making it compatible with the requirements of many work environments.

Applications of the multi-gas detector (propane, methane, etc.)

This detector is used in a wide variety of sectors:

• mechanical maintenance and engine inspection;
• detection of leaks in natural gas pipes;
• monitoring of industrial areas using hydrocarbons or solvents;
• work in processing plants, refineries, mechanical workshops, and construction sites;
• residential or commercial inspection of gas systems;
• explosion prevention in enclosed or poorly ventilated environments.

It is particularly useful for quickly locating a leak, checking the tightness of a connection, or securing a work area before repairs.

Portable gas detector limitations

The device detects combustible gases but does not replace a fixed detector in installations where continuous monitoring is required.

It must be used in an environment where oxygen is present; it is not suitable for oxygen-deficient atmospheres.

Like any portable detector, it may react differently depending on humidity, temperature, or the presence of contaminants in the air. Regular calibration is recommended to ensure accuracy. Finally, it does not measure the exact concentration of a gas, but signals its presence and relative intensity.

Maintenance and service life of the gas detector

To ensure reliable use:

• replace the sensor when necessary (GD3300-ST);
• perform a functional test before each use;
• keep the device clean, especially around the sensor inlet;
• store the detector in a dry, temperate environment;
• calibrate periodically according to the manufacturer's recommendations.

Minimal but regular maintenance extends the life of the device and ensures accurate detection.

Additional accessory available

GD3300-ST – Replacement sensor for R9300 detector (model TGS2611-COO).

FAQ – Combustible gas detector

1. What types of gases can this detector identify?

The device is designed to detect a wide variety of combustible gases and industrial vapors. Among the most common gases it detects are:

• natural gas, methane, propane, butane, ethane;
• solvents such as benzene, acetone, paint thinner, lacquer, naphtha;
• industrial vapors: ammonia, gasoline, aircraft fuel.

It also identifies several toxic or harmful gases when they are flammable.

2. Does the detector measure the exact concentration of the gas?

No. This type of equipment does not measure a precise concentration, but detects the presence and intensity of a gas.

It alerts the user by means of:

• an audible alarm whose frequency increases with concentration;
• a three-color visual indicator;
•  A preset alarm threshold of 10% LEL (lower explosive limit) for methane.

It is a rapid detection tool, not a gas analyzer.

3. Can the sensor be replaced by the user?

Yes. The detector is equipped with a user-replaceable sensor, which significantly extends the life of the device.

The compatible sensor is:

• GD3300-ST – Replacement sensor for model R9300 (TGS2611-COO).

4. Does the detector work in noisy environments?

Yes. The device has a headphone jack, allowing the user to hear the audible alarm even in a very noisy industrial environment.

This improves safety when searching for leaks in factories, machine shops, or on construction sites.

5. Does the detector need to be calibrated regularly?

Yes. Calibration is recommended to ensure a reliable response, especially when used in environments where different gases may interfere.

The device can be recalibrated for:

• other combustible gases,
• other concentrations,

up to 40% LEL depending on operational requirements.

Suggested complementary products for combustible and natural gas detectors such as propane

Need additional safety equipment? See the following items: CDN “Cartridge Respirator Required” sign (ECO106), “Notice: Cartridge Respirator Required in This Area” sign (EOAV328), half-face respirator (R6200), full-face respirator (RFF402), or Quick Latch half-face respirator (R6502QL).

Under “Accessories” at the bottom of the page. If you are looking for work equipment, check out the following products: Full-face respirator (R6800), 3M medium air-purifying protective suit (R6800PF) or the large version (R6900PF).

The green text corresponds to hyperlinks leading to specific safety equipment or general information.

-------------------------------------------------------------------

Combustible Gas Detector.

Features:

• Detects a wide range of combustible gases including: gasoline, propane, natural gas and fuel oil
• High sensitivity detects small leaks
• Designed for one-handed operation
• 16" (406mm) gooseneck for hard to reach areas
• User adjustable sensitivity wheel
• Alarm set at 10% LEL for methane
• Earphone jack for loud environments (earphones sold separately)
• Tricolor visual indicator
• Audible (variable tick rate) and visual (LED) alarm indicators
• User replaceable sensor

Specifications:

Sensitivity: 50 ppm methane.
Alarm Limit: At 10% LEL for methane (can be calibrated for
other concentrations or gases up to 40% LEL).

Accessories available to complete your purchase:

GD3300-ST: Replacement Sensor Tip.