Alcohol hydrometer dual scale (Proof and Tralles). Subdivision are 2 for the Proof scale and 1% for Tralles. 350-45991 has a thermometer with a range of -10° to 100°F and compensation values printed on the scale.
Customer Log-in
Click to shop partner's catalogs
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.