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    General Tools   Combustible Gas Leak Detector Pen with Auto-Calibration Function

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    • Description
      Store SKU:

      The PNG1 Gas Detector Pen detects natural gas, compressed natural gas, ch4, methane, propane and butane, liquid natural gas (LNG), liquid petroleum gas (LPG) to locate leaks in pipes, valves and fittings. This essential tool is packed with features such as audible and visible annunciation and Catalytic combustion sensor. The high sensitivity of the unit to natural gas (methane) and LPG (propane) and affordability make it ideal for the technician, Do-It-Yourselfer or homeowner.

      • Detects LNG, LPG, CH4, methane, butane and flammable gas
      • Sensitivity: LPG: 2000 PPM; LNG 4000 PPM
      • Catalytic combustion sensors
      • Power source: (2) AA batteries and wrist strap
      • LEDs: green on yellow, 20% +/- 5% LEL on red, 50% +/- 10% LEL
      • Microprocessor controller for accurate readings
      • Ideal for contractors and homeowners to check gas leaks in plumbing and appliances
      • Redundant visual and audible alarms
      • Auto-calibrating to ambient conditions
      • Range: 0 to 100%
    • Specifications
      Advanced Sensor Options :
      Butane 0-100% Vol
      Combustible Sensor Options :
      0-100% LEL Hydrogen
      Gas Detector Type :
      Instrument Type :
      Diffusion w/ Color Display
      Number of Sensors :
      Packaging :
      Standard Carton
      Product Depth (in.) :
      Product Height (in.) :
      Product Weight (lb.) :
      Product Width (in.) :
      Rechargable Battery Pack and Power Supply :
      Replaceable Battery :
      Returnable :
      Sample Probe Options (ft.) :
      Sampling Line Options (ft.) :
      Tools Product Type :
      Test Meter
      Toxic Sensor 3 Options :
      Toxic Sensor Options :
    • Reviews

      Ratings & Reviews

      90% of customers recommend this product
      Out of 5:
      • Works well, but has limitations and may not be intuitive
      • January 13, 2015
      • Recommended Product

      I struggled with how to rate this detector. It works well and seems to have similar features to its competition, but this class of meter has some limitations you need to be aware of (and isn't quite what I was expecting).. First off, I believe this meter performs well for anything it claims to do. The instructions that come with it are written by someone with good English and are easy to understand (which is not something I can say about many products these days). It comes with two AA batteries that were easy to install. I had no problems using it following the directions. It's rated to detect Methane, Propane, and Butane. Now for some of my concerns: First off, I would not describe this as intuitive to use. There are no instructions on the unit itself to explain what the various tones are or what the LEDs on it mean. Also, you have to power this on away from any gas to calibrate it. None of this is a problem if you read the easy-to-follow direction booklet, but in a age where people think they should be able to use stuff without reading instructions (or where they lose the instructions), someone could easily misuse or misunderstand this. It's also important to know that you have very little resolution on this meter. Basically you have 3 values: gas not detected (green LED), some gas detected (yellow LED: 20-50% Lower Explosive Limit = LEL), and high gas detected (red LED, >50% LEL). So if you are looking for a meter to give you detailed stronger/weaker readings for trying to find a leak, this probably isn't it. Finally, I worry a bit about is sensitivity: as noted above in the LED colors, this meter isn't set to trigger until it reaches 20% LEL (Lower Explosive Limit). In playing with my propane-powered stove, I can smell the propane with my nose before this meter detects it, much in the same way you can probably smell smoke before your smoke detector goes off. I believe if you smell gas this may help you pinpoint where the leak is coming from, but if you are depending on it to tell you that you have a gas leak, it may not have the sensitivity you want. (By the way, 100% LEL is the point where a flame/spark could cause an explosion, so you definitely want to detect and fix any leaks well before you reach that level.) So if you are comfortable with the feature set, I have no issues recommending this detector at its price point. But if you actually wanted a digital meter with a readout giving you strengths, or something sensitive to detect low gas levels (lower than your nose will detect), you may want to look for a different style of meter.

      Pros Easy to Use, Good Size & Weight, well written instructions Cons minimal labeling on unit
      • Top 250 Contributor
      • DIY


      45 to 54, Male
      15 out of 15 people found this helpful
      more details...
      By: jred
    • Shipping & Delivery Options


      Express Delivery from Store is available for items currently in stock at a The Home Depot store within a delivery ZIP code. A driver from a local store will deliver the item(s).

      Outside Delivery:  Service includes delivery to area outside the house which is accessible by delivery equipment.

      Threshold Delivery: Service includes delivery across your first doorway or threshold (ie. garage, backyard, deck, first room of the home).

    This item cannot be shipped to the following state(s): AK,GU,HI,PR,VI

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