BLACK DECKER Digital Thermal Leak Detector TLD100

Very useful item to have at home. Recommend it.

The product is well built, arrived quickly and I wanted to use it for tracing draughts around windows, kitchen units, doors etc. The temperature change settings are easy to understand and you set the initial temperature by simply pointing and holding the trigger on. With a little bit of practice you will find it easy to set up for the task you have. The issue is to remember when using it for things like draughts is that all internal rooms have layers of heat as all hot air rises. So if you trigger the tool at a point on the wall to set it then move the tool down 30cm it may well tell you that it is colder on the lower reading. This is not necessarily due to a draught but the ambient temperature in the room being naturally colder towards the floor. It works best if you take readings left to right of the setting temp rather than up and down. This means that you would be better running it along the bottom of a door or the windowsill rather than up and down the sides. I quickly identified areas where the colder air was in my rooms but trying to find the culprit air flow was a bit more difficult as the colder air would tend to drop which meant that I may find a cold spot but the air gap was higher up. This may sound like it's too complicated but it honestly isn't and with a little practice you may just be able to save a few pounds by finding where you are losing your heat. I haven't tried to use it in the loft yet to check for gaps in my insulation but that is the next project. Enjoy.

Easy to use and works well

I bought this unit as I could feel drafts about the house this winter more than normal and I couldnt understand why so I wanted to find exactly where they were coming from so I could sort them out and this item located them it's brillient. Easy to use and finds Hot, Ambient and cold spots around the building you wouldnt even think you had. Not the cheapest BUT the colouerd lights are worth the extra cost from the others. From a Green ambient spot in your home you will find any drafts with it imediatley turning Blue soon as it detects a colder area and on the digital desplay showing you instantly the temp diffderences aswell. 5 stars for me.

This is a fairly decent item , it does glow red for surfaces beyond hot treshold point and blue for cold spots and green for ambient tempPositive9v battery lasts agesrobust well madeeasy to useeasy to operatecomfortable to holdGood accuracyNegativeAccuracy not perfect within couple of degress generally from start pointBulkyPrice not cheapVery basicGood for indication but not great for accurate problem solving

Works well to quickly find out heat differentials in your home. Simple to use

Didn't even know this technology was available so cheaply until I stumbled across it while looking at loft insulation on Amazon. My front bedroom was always freezing even though the rest of the house was nice and warm. I'd assumed the heat was escaping through the attic and had just planned to buy loads of insulation and double up what was already there.Thought I'd try this gun first in case it wasn't the attic and there was a leak around the window or some insulation missing in the exterior wall. Very simple to use (although I had to go out and buy one of those little oblong batteries, didn't even know anything used them anymore and a shame it doesn't come with one). Set the mean temperature and the deviation then slowly move it around the walls and ceiling and watch the torch change colour as it finds cold or hot spots.What I found was that in one corner of my bedroom ceiling there was a point that was 5 degrees lower than anywhere else! Easily rectified and instead of buying 5 rolls of insulation and doing the whole loft, I just bought one and crammed it into that corner. It was right in the eaves so I couldn't see why that part wasn't as well insulated as the rest, but it's done the trick and that corer in the ceiling is only 1 degree lower than the rest now and it's noticeably warmer.So basically, buying this saved me money and time. Only doesn't get full marks because of lack of battery.

It amazes me why some people give a product this good a 1 star review. At least one "reviewer" claimed it didn't detect draughts but draughts cause cold spots and this device detects those well. Who knows how these 1 star reviewers use the product! All I can say is, set appropriately, in my case I use the centre 5oF 3.0oC setting, it works very well indeed. For the second winter running I have been using this device and identified several areas around our front window where cracked sealant was causing a significant drop in temperature, indicated by the light turning blue. A bit of new sealant and a much better result was obtained. This device is very good in my experience having owned one for at least a year.