hook gauge
A rod with sharpened point directed upward at the end of a “j” which is attached to a graduated scale and vernier for obtaining an accurate measurement of water surface elevation.
Authorization Path: 2.4.5.2.20.15
A rod with sharpened point directed upward at the end of a “j” which is attached to a graduated scale and vernier for obtaining an accurate measurement of water surface elevation.
Authorization Path: 2.4.5.2.20.15