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Black & Decker TLD100 Thermal Leak Detector

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Black & Decker TLD100 Thermal Leak Detector

The thermal leak detector makes it easy to monitor your home's energy efficiency by finding areas that let heat out and cold air in. Simply set the detector's temperature tolerances to one, five, or 10 degrees and scan the light across the area you want to inspect. The light will change to red for warmer spots and blue for cooler spots to detect air leaks in both warm and cool weather. The detector also displays temperatures in either Fahrenheit or Celsius on the LCD screen. Check for drafts or leaks around your fireplace, recessed lighting, electrical outlets, along floor molding, or any place that may have improper seals, caulking, or seams that aren't immediately visible. An included booklet gives you tips and instructions on how to seal leaks and improve insulation.


  • Infrared thermometer detects wall surface temperature to spot hidden energy leaks
  • Easily set the reference temperature to show deviations
  • As you aim the detector at walls around your home, LED changes color at hot or cold spots
  • Save up to 20% on heating and cooling energy costs by reducing hidden leaks
  • Includes booklet of easy ways to seal and insulate your home

Shipping Cost: Free!

Return Policy: Within 30 in the original packaging

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Review Snapshot

  • 5 of 5 stars
69% (48)
20% (14)
8% (5)
3% (2)
2% (1)
  • Easy to use and read   »   Most Recent Review “This is a simple leak detector that works much like infra-red thermometers. It does allow for sweeping across an area that makes it evident where a change occurs, i.e.”
  • This meter is a dandy, especially if you're tech-nerd   »   Most Helpful Reviews “Even if you are an unfortunate non-tech "regular" person. Man, what fun to aim and read this dandy little hand-held temperature detector.”
  • Not As Accurate Or Useful As I Would Have Though   »   Most Helpful Critical Reviews “Got this thing today returning it tomorrow, it's kind of hard to believe I'm reviewing the same product that others have given such high marks.”