Gas Leak Detector

Leak Detector LD239


Gas leaks can cause detector noise and baseline instability, shorten column life and waste expensive carrier gas. GL Sciences' LD239 leak detector is an easy way to quickly identify leaks in your system.
LD239 provides the most sensitive He leak detection inexpensively, compact size, easy charging (via USB), and easy-to-use configuration.

Gas Leak Detector LD239
Gas Leak Detector LD239


Detector Thermistor-actuated thermal conductivity cell
Sensitivity Selectable in two ranges
Standard Range: Helium 0.005 mL/min in atmosphere
High Range: Helium 0.0005 mL/min in atmosphere
Target Gases Helium, CO2, Ar, Ne, etc.
(gases that are largely different thermal conductivity from referential gas
at nonflammable and noncorrosive atmosphere)
Display LCD display with 8 bar graphs, 8 LED lamps for leakage
LCD display for Parameter setting
Battery and Recharger Rechargeable lithium-ion battery, USB cable
Charging Time Max. 2.5 hours
Continues Operation Approx. 5 hours (with a new, fully charged batteries, Std. Range, Buzzer OFF, LED OFF, LCD Backlight OFF)
Operating Temp.
10 ºC to 40 ºC (noncondensing)
Dimension 50 (W) x 19.5 (D) x 111 (H) mm (Excluding protrusion)
Weight Approx. 95 g

* A lithium-ion battery used in the LD239 does not comply with battery regulations in Taiwan, Australia or Russia. Do not import or use the LD239 in such countries.

Leak Detector LD2391pc2702-19340

Maintenance Parts

LD239 Sample Filter1pc2702-19333
LD239 Reference Filter1pc2702-19334
LD239 Charging micro USB cable1pc2702-19331