LDTK-780 Combustible Gas Leak Detector 50ppm with Built-in Sensor Propane Butane Methane Natural Gas

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Detect the gas leaked indoors with its slim gooseneck sensor. You can adjust the sensitivity and the length of the gooseneck for different scenarios. This combustible gas leak detector is suitable ...
$48.90 USD
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Detect the gas leaked indoors with its slim gooseneck sensor. You can adjust the sensitivity and the length of the gooseneck for different scenarios. 

This combustible gas leak detector is suitable for industrial like factories or domestic use in the kitchen.

Detected gas: natural gas, propane, butane, methane, propanol, ethanol, ammonia, steam, co, gasoline, spraying fuel, sulfurated hydrogen, smoke, industrial solvent, paint, naphtha.


  1. Handheld design
  2. High sensitivity
  3. Quick to find leakage source
  4. Leakage indicator via alarm bulb
  5. High precision sensor able to detect slight gas leak
  6. Earphone socket for using in noisy environment
  7. Long gooseneck
  8. LED Power / Alarm indicator
  9. Adjustable beep sound
  10. Adjustable detection control
  11. Sensor reset
  12. Low battery indication


  • Sensitivity: 50ppm Methane
  • Sensor Type: Low Power Semiconductor
  • Response time: 2 seconds
  • Warm up time: 60 seconds approx(25°C, 60% RH environment)
  • Continuous operating time: 8 hours(varying with operating status)
  • Operation Cycle: Continuous Operation
  • Low battery indication: 3±.2V
  • Operation temperature°0~52°C Level 10% of Methane
  • Sensor length: 16 inches
  • Power & Alarm LED indication
  • Operation environment
    • Temperature range: 0~48.8°C (32~120°F)
    • Humidity range: 10~90% RH (non-condensation)
  • Power: 3 x 1.5V LR14 Battery
  • Battery Life: Continual Use for 8 Hours
  • Item Weight: approx. 308 gms
  • Product Dimensions: approx. 21.6 x 7.6 x 3.8 cm

Set Includes:

  • 1 x Combustible gas detector
  • 1 x Gooseneck sensor
  • 3 x 1.5V LR14 Battery
  • 1 x Carrying pouch
  • English User manual
  • Standard factory package

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund in the same payment form used at the time of purchase within four weeks of giving your package to the return shipper. This time period includes the transit time for us to receive your return from the shipper, the time it takes us to process your return once we receive it, and the time it takes for the refund to be credited to your account.

For more information, please refer to our Return, Refund & Warranty Policy or contact us.

Shipping Policy

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

For more information, please refer to our Shipping Policy.

Warranty Policy

Most of our items come with 1 year warranty for manufacturer defects. It does not include damage caused by misuse, accidents, abuse, alterations, neglect or other external causes.

The warranty will not extend to consumables (i.e. electrodes, calibration solution, battery, index oil), accessories, cable, compact disk and/or any written document bundled with the item.

For more information, please refer to our Warranty Policy.

1-Year Warranty
30-Day Returns
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