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  • General Tools & Instruments CGD900 Intrinsically Safe MSHA Approved Combustible Gas Leak Detector
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General Tools & Instruments CGD900 Intrinsically Safe MSHA Approved Combustible Gas Leak Detector

128 customer reviews

List Price: $299.00
Price: $222.04 & FREE Shipping. Details
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Combustible Gas Leak Detector
  • Enter your model number above to make sure this fits.
  • Ideal for detecting more combustible gases (including hydrocarbons) than competitive units; sensitivity as low as 5ppm (methane)
  • MSHA approved; intrinsically safe (in methane-air only)
  • Features long life sensor (300+ hours), unique digital leak size alarm, automatic calibration and alarm mute mode
  • Response time is instantaneous and warm up time is less than 10 seconds
  • Numeric LED display of sensitivity; bright LED is visible in sunlight
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11 new from $216.53
$222.04 & FREE Shipping. Details Only 4 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Product Description

Style: Combustible Gas Leak Detector

General's CGD900 Intrinsically Safe MSHA Approved Combustible Gas Leak Detector is ideal for detecting more combustible gases (including hydrocarbons) than competitive units. It detects methane, propane, ethane, butane, hydrogen, ethylene, ethanol, ISO-butane, NOL, gasoline, acetylene, methyl ether, ammonia, hydrogen sulfide, industrial solvents, benzene, alcohols, acetone, toluene and xylene. Numeric LED display of sensitivity and heated sensor technology. Features long life sensor, unique digital leak size alarm, automatic calibration, alarm mute mode and 3 LED sensitivity levels. Ultra sensitive to methane gas. Includes test vial, 4 AA batteries, user's manual and 2 Year Limited Warranty.

Product Information

Style Name: Combustible Gas Leak Detector
Technical Details
Part Number CGD900
Item Weight2 pounds
Product Dimensions2.2 x 2.1 x 10.5 inches
Item model numberCGD900
Batteries:4 AA batteries required. (included)
ColorBlack|Blacks
StyleCombustible Gas Leak Detector
Item Package Quantity1
Number of Handles1
Batteries Included?Yes
Batteries Required?Yes
  
Additional Information
ASINB004UXR3LW
Best Sellers Rank #423,971 in Home Improvement (See top 100)
Shipping Weight2.4 pounds (View shipping rates and policies)
Date First AvailableOctober 11, 2011
  
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

33 of 34 people found the following review helpful By Chris Musemeche on January 22, 2012
Style Name: Natural Gas Detector Pen Verified Purchase
After reading the reviews on this site I was hesitant to buy this detector, but the more positive reviews on Lowe's site encouraged me to move forward. That was a good decision. I've been dealing with minor gas leaks on my side of an upgraded gas meter installed in the backyard as part of a natural gas fired backup generator a couple of years ago. As you might guess there were numerous connections to check and I had found a couple of minor issues using the bubble solution test. But there was still a little gas getting out so I bought this detector, hoping it would help me spot the elusive leak. Initially I thought my suspicions were justified when I checked the various joints with the detector with no alarms despite the odor of natural gas present. Finally I checked a joint that I could not have checked with the bubble solution due to the vertical orientation of the pipe as it screwed into a fitting. I could check the lower joint with the solution, but not the upper. As I passed the tip of the detector slowly around this joint the low alarm sounded then the high concentration alarm sounded. I was able to turn off the gas, unscrew the union, then the offending pipe, put new joint compound on both ends and tighten securely. Turned the gas back on, ran the detector tip around both ends and confirmed that the leak had been fixed. There is no doubt that this detector saved me a plumber's visit and was worth the price paid.
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16 of 16 people found the following review helpful By DJL on February 15, 2014
Style Name: Natural Gas Detector Pen Verified Purchase
So I almost did not purchase this gas detector after reading several less than favorable reviews, but I figured as 1/4 the price of the ones getting good reviews, and I will rarely use it, might as well try it.

Well after installing the propane lines on my bus conversion project, my hard wired LP alarms went off several times, I could faintly smell gas, but after hunting around with soapy water, still could not find which of the 100 or so fittings/junctions/connections/hoses it was coming from.

Within 2 minutes, using the PNG2000A I had the leak isolated (a flair fitting under the on demand water heater, very hard to get bubbles on as it was vertical and in a tight space). I rally like that this has the 20% and 50% alarms allowing for isolating of the leak spot. Holding it 3" from the leak would produce the low level alarm, and right under, the high level.

I would highly recommend this for someone to check their fittings or trace a leak in you RV, for a professional who will use it often, it does feel a bit cheaply made, though it is cheap. It works though, and that's what counts!
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14 of 14 people found the following review helpful By Highlander on September 13, 2013
Style Name: Combustible Gas Leak Detector, Normal Environments Verified Purchase
I use this to spot check the gas service lines in my rental properties before I buy them, and during tenant changes. It's very sensitive, and will pick up the tiniest leak. Very nice tool ...
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13 of 14 people found the following review helpful By Hawks Fan 77 on May 4, 2014
Style Name: Combustible Gas Leak Detector, Normal Environments Verified Purchase
Recently added a laundry room from the basement to the 2nd floor.....and had to run a good amount of black iron pipe to make it happen. I've never had great results using the soapy water method for finding gas leaks and wanted something a little more reliable. Having done some research, I decided on this General Tools unit.

I like that this unit has both a visual and audio alert when gas is detected. At first, I was questioning how well this unit worked as it didn't detect any leaks on my 30+ foot run of pipe, fittings and reducers. Then I went to the basement where I had a shutoff to the hot water heater that I knew had a very minute leak at the shutoff valve. It took a few seconds on the high-sensitivity mode to peg the meter. Just for kicks I checked the other shut off that fed an old gas lantern in the front yard and got the same results. Meter pegged.

I replaced these valves shortly after, and am confident that my home is now leak free.

NOTE: I read on another review (don't remember if it was for this particular unit) that someone had a meter that was picking up outgassing from teflon paste. I did a quick swipe of the wand over an open jar of teflon paste, and noticed the same. This meter was picking up a low-level gas leak from the paste that I had on hand. Apparently, the paste will outgas for a week or two and the meter will detect this. I used yellow teflon tape designed for gas lines, so this was not a problem in my application. Just something to keep in mind.

Overall, I am very pleased with this purchase and am glad that it came with a nice blow-molded carry case.
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13 of 14 people found the following review helpful By Jonathan Frederick on February 2, 2012
Style Name: Natural Gas Detector Pen Verified Purchase
I was of course skeptical because half of the reviews here are negative. But still I figured since I was purchasing directly from Amazon, I could easily send it back if it didn't work. I installed a gas fireplace in our house and had to run a new gas line. I needed to give my wife a warm and fuzzy because she felt that she was smelling "something" (turns out it was just the exhaust of burnt gas since this is a ventless fireplace and not something she was used to before). Anyhow, pushing in the button to initiate the pilot light without actually lighting gives off enough natural gas to set it off. Running it over all of my connections and basically everywhere else possible even while the pilot was lit did not. Burnt natural gas fumes should never set this off. I was checking more for leaks internally that may have caused gas to seep from the log output areas while the pilot was running. I have no clue if it will work for everyone but figured I should explain that it worked for me personally and maybe save someone $100 by avoiding the more expensive "pro" versions. The only reason I give it 4 stars is because it is still a little expensive and I actually received a gray one instead of this one so somebody is not doing their job with updating the image/description/etc.
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General Tools & Instruments CGD900 Intrinsically Safe MSHA Approved Combustible Gas Leak Detector
This item: General Tools & Instruments CGD900 Intrinsically Safe MSHA Approved Combustible Gas Leak Detector
Price: $222.04
Ships from and sold by Amazon.com