Practico termómetro que le permitirá saber las condiciones de temperatura del agua y determinar mejor que tipo de mosca utilizar . Tubo de vidrio recubierto en metal, da la temperatura en grados Farenheit y CentigradosImportadorCalidad OrvisPleasingly simple and old-tech a glass, sprit thermometer, mounted in a protective metal sleeve. The scales on the thermometer are in both degrees C and F, and run from minus 30C (-20F) to 50C (120F). I’m thinking this should come with a health warning at both ends of the scale – that’s from dangerously cold to ridiculously hot. Water and air temperatures are important fishing factors this measures either quickly and accurately.