Total Immersion LO-Tox Blue Spirit Filled Laboratory Thermometer-1°C to +51°C 405mm LO-tox™ is an organic filling specially chosen to achieve a wide temperature span and provide the lowest practical levels of hazard. The quality and legibility make these an ideal substitute for mercury thermometers. Fitted with Brannan non roll end cap which has a ring to allow the thermometer to be suspended.Range (°C): -1 to +51°CDivision: 0.1°CLength: 405mmFilling: Blue SpiritImmersion: Total ImmersionAccuracy: +/-0.5°C @ 35°CProduct Material: Glass Tube: Kerosene filled