. Accurate . Educational . Unique Production of this instrument can be extremely complicated. Each glass sphere is precision-crafted, filled and calibrated within 2/10°F (1/10°C). Skilled craftsman and excellent workmanship produce an instrument that is accurate within ±2°F (±1°C). A wonderful conversation piece, this useful instrument will give many years of enjoyment.
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.