Finnish spa and wellness engineer company Cariitti Oy has developed Aspectu; a stylish heat and humidity meter that provides an LED-lit temperature display within sauna wall panels.

The meter fixture consists of a 230mm-round wooden display panel made out of Finnish birch plywood. It can be freely positioned on the sauna wall while the electronic parts remain concealed behind wall panels.

The meter’s LED light source forms an hourglass pattern on the surface of the wooden panel allowing users to monitor their time in the sauna. This works in a loop whenever the meter is switched on.

Cariitti Oy offers Aspectu in three types of wood – birch, hemlock or kelo plywood – as well as three Supi sauna wax colour options; kuura, kaarna and noki.

Peter Ruokonen, Cariitti Oy CEO and owner, says: “The panel can be tinted to match the exact colour of the sauna walls and it can be fitted wherever you want within the sauna area.”