Pack of 30 Total Immersion Initial™ Brand Thermometers with range -10°C to +110°C length 150mm and Green FillGraduated -10 to 110°C.Divisions: 1°CFill: GreenAccuracy: +/-1.5°C at 35°CLength 300mmTotal ImmersionFilled with a specially developed non-toxic fluid Kerosene.Kit contains 30 thermometers. Tray not included.