MMD4E Digital/LED Compact Pin-Type Moisture Meter

  • $45.39 USD
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Whether you’re a professional contractor or a conscientious homeowner, General’s ultra-sensitive Moisture Meters help you to easily detect hidden leaks in wood, concrete, plaster and carpet. Available as both analog and digital models, the Meters provide accurate moisture level readings and are great for new home inspections, locating roof leaks or even selecting dry lumber at the yard.


  • Ideal to use in woodworking, building construction and agriculture. 
  • Meter is also used in the restoration business to check if there is moisture in carpets and sub-flooring.
  • LCD display.
  • Wide measuring range
  • Check wood, drywall and concrete before painting, sealing or treating
  • Locate and identify water leaks in roofs, floors & walls
  • Great for homeowners, contractors and inspectors
  • Built-in low battery indicator
  • Display will show the moisture content in "% moisture Content" directly.
  • Protective Cover
  • Battery


  • Length (in): 5.7 Weight (lbs): 4.4 oz
  • Width (in): 2.4
  • Height (in): 1.2
  • Display: 3 digit, 10mmLCD
  • Range: 8-30%
  • Resolution: 0.1%
  • Accuracy: ±2%
  • Sampling Rate: 1s
  • Power Supply: 1 x 9V Battery
  • Operating Environment: 32 to 122 °F (0 to 50 °C), RH90%
  • Size: 145 x 60 x 30mm
  • Weight: 125g

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The customer service at Tech Instruments is excellent!

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It didn't work

Hi Vincent, Please confirm that you have purchased the correct sensor for your base station. It's also possible that the base station is defective. Please contact us for assistance.
Great unit for the price.

Easy to set up and use, easy to see from a distance. A great unit for the price, I will buy another to replace another old one.

I did submit a very positive review. But this rating software keeps prompting me as though you aren't getting it. Must hang up. Sorry.

Better than original

Easy to install. Works well, totally satisfied !