1235 Sheathed Ordinary Thermometer

Handcrafted in Germany to the Met Office pattern BS692, the 1235 ordinary thermometer is specifically designed for use in a Stevenson screen. It measures temperatures from -30°C to +45°C with 0.5°C graduated markings. 

Traditionally, this thermometer is mounted vertically as a pair in a screen, with one thermometer measuring dry temperatures and the other used with a wick and reservoir for wet temperatures, forming a masons hygrometer.