Maeda Koki MKC type OIL SIGNAL – Flow Indicator confirms a flow of the oil, water, and air by viewing by the moving ball with a protective cover.
I can see a flow at first sight
It is a rheoscope confirming fluid flow by the movement of transparent balls (or a float) in the jurisdiction.
I cannot confirm the flow quantity.
With protective cover
By a metal protective cover, I reduce possibility of the damage by shocks from the outside.
The installation direction does not matter
The posture when attach it as use a spring inside looks up and look down; and
I can perform sideways-facing freely.
Supplement about the model
The model in case of the R screw is MKC a connection entrance exit □* -□It becomes TOL. An example: MKC20-3TOL
The model in case of the R screw is MKC a connection entrance □* -□It becomes TOML. An example: MKC20-3TOML
The model in case of the R screw is MKC a connection exit □* -□It becomes TMOL. An example: MKC20-3TMOL