Abbeon Cal Inc HTAB-176 Certified Hygrometer & Temperture Indicator. Scales – 0 to 100, 0 to 200 F, -20 to 100 C. The item “Abbeon Cal Inc HTAB-176 Certified Hygrometer & Temperture Indicator” is in sale since Wednesday, April 15, 2020. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller [...]