Handheld gas leak detector uses thermal conductivity to locate leaks quickly

Laboratory products

Handheld gas leak detector uses thermal conductivity to locate leaks quickly

07 Oct, 2026

The Gas Leak Detector LD249 from GL Sciences is a high-sensitivity, reliable handheld device designed for detecting gas leaks in various applications. It can accurately and quickly identify gas leaks, making it invaluable for detecting leaks in gases used with analytical instruments such as gas chromatographs, as well as helium leaks in MRI systems and other gas-utilising environments.

The LD249 is equipped with an ultra-compact TCD (thermal conductivity detector) that ensures precise leak detection even in critical situations.

By detecting differences in thermal conductivity relative to air, the LD249 supports the detection of a variety of gases, including helium, hydrogen, methane, propane and more, catering to a broad range of applications.

Its compact, ergonomic design makes the LD249 easy to handle. The intuitive digital display and straightforward operation buttons allow users to quickly interpret results.

The device provides instant readings of gas concentrations, supporting quick decision-making during routine inspections.

The LD249 is equipped with both audible alarms and visual indicators, ensuring easy identification of gas leaks even in noisy environments or situations with limited visibility.

The device can be powered by AA batteries or via USB. Additionally, it supports power supply from portable power banks, offering flexibility for various usage scenarios.

The LD249 can be used for the inspection of gas pipelines for analytical instruments, residential gas system checks and the maintenance of gas storage and transportation systems.

The Gas Leak Detector LD249 is an essential tool for detecting gas leaks in a wide range of applications. Its ease of use and reliability make it the perfect solution for industries seeking to enhance operational efficiency and safety.

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ILM 51.6 Sept 2026

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