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Thermometer without graduation, for calibrating a thermometer scale; Liquid thermometer filled with alcohol, with movable silicone triangle (the triangle prevents the thermometer from rolling off the table and also serves as a marking point)Measuring range: -10 ... +110 °CGraduation: noneDimensions: D= approx. 6 mm, L= approx. 280 - 300 mmMass: approx. 20 g