Blue level, single tube for incline

Bubble moves a lot so gradients can be read at a glance


[Features]
· Even if sand or mud enters while working, the inside can be water washed, so it can be stored cleanly.
· Horizontal and 5 types of gradient (0.5/100, 1/100, 1.5/100, 2/100, 2.5/100) measurement possible.
· The single pipe system enables continuous measurement of gradients.
· The single pipe system enables bidirectional measurement.
· The measuring surface has a rounded shape to provide stability for use.
· Since the bubble tube includes a luminescent sheet, it is useful for working in the dark.
· For confirming and adjusting gradients when installing drain pipes in houses