draugth detector

11-08 - elektor november 1980 draught detector However well insulated you think your house is, there are bound to be a few nooks and crannies which will allow interior heat to escape. Once they are found they can be dealt with quite easily - it is the act of locating them that is the major cause of headaches! With the aid of this electronic draught detector you can easily trace the source of your stiff neck and keep the house warm. There are many elementary ways of checking for draughts in a house. You can, for instance, moisten a finger and hold it up in the air to see from which direction the wind is blowing. Another method is to wander around with a burning match or candle, but this seems to attract gas leaks (in which case your worries are over) and nasty grease marks on the carpet. A much simpler solution is to use the electronic draught detector described here. By mounting the sensor on the end of a long probe, no draught will be able to escape undetected. The principle ...