This Plastimo set of 140mm (4.5 inch) brings together three reliable instruments in brass: a clock, a barometer, and a thermo-hygrometer, all three with a Roman dial and a bevelled glass edge. Choose the clock in the standard version or as a tide clock, which indicates not only the time but also the ebb and flow. The barometer measures air pressure with an aneroid mechanism and a full metal chain, measuring range 960–1060 hPa, accuracy ±3 hPa between 990–1030 hPa. The thermo-hygrometer, in a brass housing with a porthole design, displays temperature and humidity for a complete picture of the indoor climate. And a porthole opening is very convenient if you want to change the settings of your instrument. Easy to hang with a screw opening on the front. The dial measures 100mm, the outer dimension of the housing 140mm, for each instrument.