Vertical spirit-filled thermometer ideal for fridge or freezer. temperature range of -30 to 40°c clearly marked zones abs plastic case this eti vertical spirit-filled fridge freezer thermometer is low-cost and features clearly marked colour-coded zones for ease of reading. the fridge freezer thermometer indicates temperature over the range of -30 to 40°c in 1°c divisions. the white abs case measures 24 x 150mm and incorporates a plastic hook to hang from a shelf. An ideal, low-cost thermometer for home, office or commercial fridge - freezer.