Find those cold spots in your house! This is essentially a hand held thermometer designed to pinpoint differences in temperature i.e. set the reference temperature in a room, then point to the walls, floor and ceiling to instantly see the difference. Move closer to focus in on suspect areas such as drafty windows, skirtings and doors. Certainly helps to identify priority areas needing insulation and draught proofing.
Can also be used to balance you radiators! watch Skill Builder YouTube to see how: https://www.youtube.com/watch?v=pol8IlkfAZA
Instructions included.
Uses a 9 volt alkaline battery (could already have one from a previous loan)