The Faithfull external swing window thermometer is designed to measure the outside temperature which can then be read from inside. Place on a window or in the window recess and the thermometer can be swung into the desired position. The dial rotates to allow readings to be taken at any angle and for indoor or outdoor use.
This thermometer is mercury free and is supplied complete with screw and adhesive pads with the following range: -50° C to +50° C.