The Serialized Armored Glass Thermometer's armor protects the thermometer from rough handling and shock during use. It is filled with Safety Blue fill an organic performance liquid that is bio-degradable and exhibits all the qualities of mercury without the risk of contamination and hazards associated with mercury * Nickel plated brass armor * Feature safety blue fill against a white background for easy reading * Wide variety of temperature ranges available SPECIFICATIONS: * Color: Clear * Color: Silver * Immersion: Partial * Length: 12 in (30.5 cm) * Material: Glass * Material: Nickel-Plated Brass * Quantity: 1 Each * Style: Glass * Temperature Range: -20 to 110°C * Temperature Resolution: 1°C * Type: Serialized * Warranty: 1 Year