Compact, Easy-to Use

The LD249 Gas Leak Detector is a portable, handheld device equipped with a compact sensor, designed for quick and accurate gas leak detection. Utilizing the difference in thermal conductivity between air and gas, it instantly detects leaks and alerts you through an easy- to-read LCD display and audible alarms. The LD249 is user-friendly, making it ideal for detecting leaks during pipe installation or checking for leaks when connecting columns in gas chromatography.

Unlike traditional methods such as using Snoop, the LD249 does not risk contaminating pipes or columns. This makes it an excellent choice for applications where avoiding contamination, such as in gas chromatography, is crucial.

LD249 Gas Leak Detector

SKU: 2702-19350

Brand: GL Sciences

Your price: $1,223.10

$1,359.00

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Details

Easy to Carry and Simple Operation

With a portable design, you can detect gas leaks easily. Simply place the probe near the detection area for instant confirmation of any leaks.

Capable of Detecting Various Gases

Not only can it detect gases with a significant difference in thermal conductivity from air, such as helium and carbon dioxide, but it can also detect nitrogen, which has a smaller difference and is more difficult to detect.

Dual Power Supply Design

In addition to standard battery operation, continuous operation via USB-C power supply is also possible. Even when the batteries run out, you can use it while supplying power from a PC’s USB port or a mobile battery.

Note 1: USB cable is not included.
Note 2: USB power supply does not support charging functionality

New - LD249 Gas Leak Detector from GL Sciences

Gases Detected by LD249

LD249 detects leaks by utilizing the difference in TC between ambient air and target gas. A greater gas difference in TC with air will generate greater sensitivities. See the table below for the TC of each gas.

Thermal conductivity ( at 0°C [W/m-k-10-3])

Gas	Thermal Conductivity	Gas	Thermal Conductivity	Gas	Thermal Conductivity
Hydrogen *	168.2	Air	24.1	Argon	16.3
Helium *	142.2	Nitrogen	24.0	Carbon Dioxide	14.5
Neon *	46.5	Ethane	18.0	Krypton	8.7
Methane *	30.2	Ethylene	16.4	Xenon	5.2

* Gases with a greater TC than air: detected with positive polarity

Typical Applications

The LD249 Gas Leak Detector can be used in a variety of applications, including:

Gas chromatography systems
Piping, valves and manifolds
Automotive components

Refrigerators
Heating and Ventilation units

Air Conditioners
Safety

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Portable and convenient for on-the-go detection

New color LCD for quick and easy gas leak detection

Specifications

Cat.No.	2702-19350 *To support paperless practices, this product does not include a printed inspection certificate. If you require a printed inspection certificate to be enclosed, please order Cat. No. 2702-19355.
Model	LD249
Detection Method	Comparison of the thermal conductivity between the sample gas and the reference gas (ambient air)
Detectable Gases	Helium, Hydrogen, Carbon Dioxide, Argon, Neon, Nitrogen, etc.*
Sensitivity (Minimum Detection Limit)	Std Range	Helium, 0.005 mL/min
Sensitivity (Minimum Detection Limit)	High Range	Helium, 0.0005 mL/min
Display	Color LCD
Setting	Detection Range / Screen Brightness / Buzzer Volume / Auto Off
Power	3 AA Alkaline Batteries / USB Power Supply
Usage Environment	Temperature Range	10 - 40°C
	Humidity Range	10 - 80% (No Condensation)
	Altitude	2,000 m or below
	Pollution Degree	2
Dimensions	52(W) x 48(D) x 170(H) mm (excluding protrusions)
Weight	Approx. 250g (excluding batteries)
Accessories	Instruction Manual, Batteries for Operation Check (3 AA Alkaline Batteries)

Item	Part#
Leak Detector LD249	2702-19350
Leak Detector LD249 With Inspection Certificate	2702-19355
Spare Probe For LD249	2702-19370
Sample Filter For LD249	2702-19371
Reference Filter For LD249	2702-19372
Analog Cable For LD249	2702-19373

Applications

There are application notes for LD249 Gas Leak Detector.

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LD249 Gas Leak Detector