Лабораторные стеклянные принадлежности
Hourglass
Hourglass Designed for counting the time interval of laboratory procedures. The case is glass. The upper and lower base are made of ABS plastic. Manba: https://www.nv-lab.ru/catalog_info.php?ID=10524
Price on request
- Type: Time interval measurement error, %
- 1 min: ±10
- 2 min: pink
- 3 min: red
- 5 min: yellow
- 10 min: blue
- 15 min: purple
- 20 min: pink