・ Automatic buret can be supplemented safely and accurately by operating a two -ball rubber spray compared to the buret.
・ The zero (scale) has a structure that can be adjusted automatically, and there is no need to operate the cock with zero buret.
・ It is manufactured equivalent or within or within the JISR3505 class A's "permissive error in volume".
・ There are two types: "rubber plug set" and "flat connection set".